Practice Test


1) 'Collection of data ' refers to systematic recording of results ______


2) _______ is the data , which is collected for the first time by investigators.


3) ______ refers to the data which is already collected and published by other authorities.


4) The sources from where primary data can be collected are known as_____


5) Which of the following organization collect and publish the primary data ?


6) Primary data is _____


7) Secondary data is _____


8) Primary data are more___


9) Which of the following terms best describes data that were originally collected at an earlier time by a different person for a different purpose?


10) In case the data were collected on the basis of sample , the users should satisfy themselves regarding ____


11) Primary data may be collected by____


12) Primary data may be collected by____


13) Which of these is not a method of data collection?


14) Under which of the following method ,investigators personally visit the respondents ,ask ,them questions pertaining to the enquiry and collect the desired information


15) Under which of the following method ,investigators collects data by contacting third-party or informants who are supposed to possess the information on the problem under investigation ?


16) ______ method of collecting information is usually adopted by newspaper agencies


17) Under _____a well designed questionnaire is mailed to the informants with a request to fill it up and return the same within the specific time schedule.


18) Under ______ of enquiry ,the trained enumerators personally visits the informants and explain the objectives of enquiry ,ask,questions and record their replies.


19) Under_____ method investigator instead of presenting himself before the informants contact them on telephone and collect the desired information.


20) The quickest method to collect primary data is _____


21) Data collected on religion from the census reports are____


22) Which method of data collection covers the widest area?


23) The amount of non-responses is maximum in _____


24) In case of rail accident the appropriate method of data collection is by :


25) If the marks obtained by all the students of B.COM - Accountancy of Pune University are recorded for analysis it will be called a ____


26) Under the____ data are collected for each and every unit of the population or universe which is a complete set of items which are of interest in any particular situation.


27) _________ refers to the process of learning about population on the basis of sample drawn from it


28) ______method is generally recommended in those cases where area of investigation is limited and requires intensive examination or study of the population.


29) The technique of census investigation is advocated by its users because of _______


30) Sampling process involves__________


31) According to Secrist,"_____ is the process of arranging data into sequences according to their common characteristics or separating them into different but related parts"


32) The same data can be classified in different way based on different criteria ,depending uponthe requirementsa of the users.


33) Which of the following is advantage of classification of data?


34) The data may be said to be classified geographically',when data relates to_____


35) The data may be said to be classified ,chronologically ,when data relates to____


36) The data may be said to be classified 'quanlitatively' when data relates to____


37) The data may be said to be classified 'quantitatively ' when data relates to ____.


38) If data are classified for registration of students for Company Secretary ship course region wise in Eastern,Northern,Sourthern,Western. It is known as______


39) If data presented for the growth of population in India over different years it is known as_____


40) _____refers to systematic and logical arrangement of data in cloumns anf rows in accordance with some salient features and characteristics.


41) According to ___ 'A statistical table is the logical listing of related quantitative data in vertical columns and horizontal rows of numbers with sufficient explanatory and qualifying words ,phrases and statements in the forms of titles heading and explanatory notes to make clear the full meaning of data and their origin'.


42) In the words of ______ Table are means of recording in permanent form the analysis that is made throught classification and by placing in just opposition things that are similar and should be compared'


43) Significance of tabulation of data____


44) Significance of tabulation of data____


45) The title of table should be_____


46) For tabulation ,'caption' is______


47) Stub' of a table is the_____


48) In tabulation source of the data if any is shown in the _______.


49) Which of the following statement is untrue for tabulation?


50) ______ are used to clarify anything which is not otherwise clear by the heading ,title,captions ,stub etc,


51) The source note is required if the ____is used.


52) ____of data refers to the table where data are classified on the basis of single characteristics.


53) In the case of ______ manifold table data are classified and presented with respect to two or more characteristics simultaneously


54) Requisite of space statistical table____


55) In the words of Croxton and Cowdon '_____ is a statistical table which shows the sets of all distinct values of the variables arranged in the order of their mangnitude either individually or in groups with their corresponding frequencies side by side'


56) Under___ we count the number of times each value of a variable is repeated and the number (technically known as tally ) is placed alongside the value to which it corresponds.


57) ______ is the distribution where the frequency refers to group of value .It is a tabular arrangement of data by classes together with the corresponding frequencies.


58) The end numbers or the highest and lowest values that can be included in class interval are known as the ____ of that class.


59) It is the difference between the upper limit and lower limit of the same class.


60) ____ means the number of observations included in a particulars class as the frequency of that class .


61) _____ is the one whose class interval are so determined that upper limit of one class is the lower limit of the next class.


62) _____ refers to that classification where both the class limits are included in the class itself while determining the class intervals.


63) Tally marks determine_____


64) Lower class Boundary =______


65) Upper class Boundary= ______


66) Diagrammatic representation of data is done by ______


67) Hidden trend ,if any in the data can be noticed in _____


68) The best method of presentation of data is____


69) The most attractive method of data presentation is_____


70) In case of a _____different values are represented by the length of the lines ,drawn ,vertically or horizontally .


71) Horizontal bar diagram is used for _____


72) In order to compare two or more retated series ,we consider_____


73) Pie-diagram is used for ______


74) Graph is a ____


75) An area diagram is_____


76) ____ is a graph of a grouped frequency distribution in which class intervals are plotted on X axis and their respective frequencies on Y axis.


77) _____ is drawn by joining the midpoits of the upper widths of adjacent rectangles of the histogram with straight lines.


78) Out of 2,000 persons,25% were industrial workers and the rest were agricultural workers.600 persons enjoyed football world cup matches on TV.30% of the people who had not watched football world cup matches were industrial workers.What is the number of agricultural workers who had enjoyed world cup matches on TV?


79) A sample study of the people of an area revealed that total number of women were 40% and the percentage of coffee drinkers were 45 as a whole and the percentage of male coffee drinkers was 20.What was the percentage of female non-coffee drinkers?


80) In 1995 out of a total of 3,500 workers of a factory 2,400 were members of a trade union .The number of women employed was 400 of which 350 did not belong to a trade union .In 2000 the number of union workers increased to 3,160 of which 2,580 were men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employees who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whom only 16 did not belong to trade union.In 1995 total number of workers (Male+Female) who were not members of trade union=?


81) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employed was 400 of which 350 did not belong to a trade union .In 2000 the number of union workers increased to 3,160 of which 2,580 were men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employees who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union. In 1995 total number of male workers (members+ non members)=?


82) In 1995out of a total of 3,500 workers of a factory 2,400 were members of a trade union .The number of women employed was 400 of which 350 did not belong to a trade union .In 2000 the number of union workers increased to 3,160 of which 2,580 were men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employees who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005, 600 were women ,of whom only 16 did not belong to trade union.In 1995 total number of workers who did not belong to a trade union=?


83) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union.In 1995 total number of female who are members of trade union=?


84) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union. In 1995 total number of male workers who are members of trade union=?


85) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union.In 2000 number of female workers who did notbelong to a trade union=?


86) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union.In 2000 number of male workers who did not belong to a trade union=?


87) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union. In 2005 number of male workers who did not belong to a trade union=?


88) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union.In 2005 number of female workers who are member trade union=?


89) In 1995out of a total 3,500 workers of a factory 2,400 were members of a trade union .The number of women employes was 400 of which 350 did not belone to a trade union .In 2000 the numberof union workers increased to 3,160 of which 2,580 wee men.On the other hand the number of non-union workers fell down to 416 of which 360 were men.In 2005 there were 3,600 employes who belonged to a trade union and 100 who did not belong to a trade union of all the employees in 2005,600 were women ,of whome only 16 did not belong to trade union.In 2005 number of male workers who are member trade union=?


90) The following information relates to number of children in house in a locality1 3 2 2 2 1 1 2 1 1 1 32 2 3 3 3 3 3 3 2 3 4 13 2 6 2 1 6 2 1 5 1 5 21 5 2 3 4 2 7 4 2 3 3 44 3 4 4 2 3 1 4 3 2 2 1Frequency of 1 child= ?


91) The following information relates to number of children in house in a locality 1 3 2 2 2 1 1 2 1 1 1 3 2 2 3 3 3 3 3 3 2 3 4 1 3 2 6 2 1 6 2 1 5 1 5 2 1 5 2 3 4 2 7 4 2 3 3 4 4 3 4 4 2 3 1 4 3 2 2 1 Frequency of 2 child= ?


92) The following information relates to number of children in house in a locality1 3 2 2 2 1 1 2 1 1 1 32 2 3 3 3 3 3 3 2 3 4 13 2 6 2 1 6 2 1 5 1 5 21 5 2 3 4 2 7 4 2 3 3 44 3 4 4 2 3 1 4 3 2 2 1Frequency of 3 child= ?


93) The following information relates to number of children in house in a locality1 3 2 2 2 1 1 2 1 1 1 32 2 3 3 3 3 3 3 2 3 4 13 2 6 2 1 6 2 1 5 1 5 21 5 2 3 4 2 7 4 2 3 3 44 3 4 4 2 3 1 4 3 2 2 1Frequency of 4 child= ?


94) The following information relates to number of children in house in a locality 1 3 2 2 2 1 1 2 1 1 1 3 2 2 3 3 3 3 3 3 2 3 4 1 3 2 6 2 1 6 2 1 5 1 5 2 1 5 2 3 4 2 7 4 2 3 3 4 4 3 4 4 2 3 1 4 3 2 2 1 Frequency of 4 child= ?


95) The following information relates to number of children in house in a locality1 3 2 2 2 1 1 2 1 1 1 32 2 3 3 3 3 3 3 2 3 4 13 2 6 2 1 6 2 1 5 1 5 21 5 2 3 4 2 7 4 2 3 3 44 3 4 4 2 3 1 4 3 2 2 1Frequency of 4 child= ?


96) The following information relates to number of children in house in a locality1 3 2 2 2 1 1 2 1 1 1 32 2 3 3 3 3 3 3 2 3 4 13 2 6 2 1 6 2 1 5 1 5 21 5 2 3 4 2 7 4 2 3 3 44 3 4 4 2 3 1 4 3 2 2 1Frequency of 4 child= ?


97) The number of accidents for seven days in a locality are given below No.of Accidents 0 1 2 3 4 5 6 Frequency 15 19 22 31 9 3 2 What is the number of cases when 3 or less accident occurred?


98) The following data relate to the incomes of 86 persons:Income in Rs. No.of persons500 - 999 151000 - 1499 281500 - 1999 362000 - 2499 7


99) The Following data relate to the marks of a group of students: Marks No.of students Below 10 15 Below 20 38 Below 30 65 Below 40 84 Below 50 100 Hoe many students got marks more than 30?


100) Fine the number of observation between 250 and 300 from the followingValue More More More More than than than than 200 250 300 350No. of observation 56 38 15 0


101) The weight of 50 students in pounds are given below.
82,95,120,174,179,159,91,85,17588,160,97,133,159,176,151,115,105,
172,170,128,112,101,123,117,93,117,99,90,113,119,129,134,178,105,
147,107,155,157,98,117,95,135,175,97,160,168,144,175.
If the data are arranges in the form of a frequency distribution with class intervals as
81-100 ,101-120, 121-140, 141-160 ,and 161-180,
then the frequencies for these 5 class intervals are ____


102) The following information reltes to the age of death of 50 persons in an area: 36,48,50,45,49,31,50,48,42,57, 43,40,32,41,39,39,43,47,45,52, 47,48,53,37,48,50,41,49,50,53, 38,41,49,45,36,39,31,48,59,48, 37,49,43,51,54,59,48,38,39,45. If the class intervals are 31-33, 34-36, 37-39,____ then the percentage frequencies foe the last five class intervals are ____


103) The income of the five person is as follows: Person Income per month ( Rs.) Ram 1,500 Shyam 1,700 Gopal 5,000 Raghav 7,500 Kishna 7,900 Type of above series_____


104) Consider following data:x 12 17 24 36 45 48 52f 4 0 7 8 9 6 3It can be classified as____


105) The series gives below is of _____typeMarks No.of Students30 - 40 1940 - 50 2450 - 60 1260 - 70 1970 - 80 10


106) The following distribution is of_____type Marks No.of students Less than 5 10 Less than 10 24 Less than 15 42 Less than 20 54 Less than 25 62


107) The series given below is of _____typeYear Demand(in kg)2004 802005 84 2006 852007 882008 92


108) The series given below is of ____type .City No .of accidentsPune 80Mumbai 50Nagpur 76kolhapur 74


109) In the lower and upper limits of a class are 10 and 20,then the midpoint is_____


110) A measure of central tendency means_____


111) "An a average is an attempt to find one single figure to describe the whole of figures". This definition is given by__


112) " A measure of central tendency is a typical value around which other figures congregate " This definition is given by ____


113) " An average is a single value within the range of data that is used to represent all values in the series .Since an average is somewhere within the range of the data ,it is also called a measure of Central Value " This definition is given by_____


114) " An average is a value which is typical or representative of a set of data " This definition is given by _____


115) Objectives and significance of statistical averages____


116) A measure of central tendency tries to estimate the ____


117) Measures of central tendency for a given set of observations measures____


118) Requisites of a good statistical average _____


119) Requisites of a good statistical average _____


120) Which of the following is "Positional Average "


121) Which of the following is "Positional Average "


122) Which of the following is " Mathematical Average "


123) Which of the following is " Mathematical Average "


124) ____ is defined as the sum of observations divided by the number of observations.


125) The words mean or average refers to _____


126) Which of the following statements is/ are false ?


127) The most commonly used measure of central tendency is _____


128) Which of the following statements is true?


129) Weighted averages are considered when _____


130) The value of all the item are taken into consideration in the calculation of _____


131) Simple average may be called as ____


132) ______ of a distrbution is that value of the variant which divides it into two equal parts..


133) 50% of actual value will be below and 50% of will be above for _____


134) _____ is that value of the variant which repeats maximum number of times in a distribution and around which other observations are densely distributed.


135) Which of the following sentence is /are wrong in relation to 'Mode '?


136) Which of the following sentence is /are wrong in relation to 'Mode '?


137) The relationship between mean , median, mode is____


138) _____is used when most frequency occurring value is requird( discrete variable)


139) Which of the following measure(s) satisfies( satisfy) a linear relationship between two variables?


140) Extreme values have _____ effect on mode.


141) ____ means the variation or scattering or deviation of the different values of a variable from their average.


142) According to ____ , " Dispersion is the measure of variations of items "


143) According to _____,"Dispersion is the measure of extent to which individual items vary ".


144) According tp ,"The measure of the scatterdness of the mass of figures in a series about an average is called the measure of variation or dispersion"


145) According to _____,The degree to which numerical data tend to spread about an average value is called the variation or dispersion of the data".


146) Objectives and significance of dispersion :____


147) ______ may be defined as the positive square root of arithmetic mean of the squares of all the deviations of the values from their arithmetic mean


148) Which of the following statements is correct?


149) Dispersion measures _____


150) The most commonly used measure of dispersion is _____


151) If the profits of a company remains the same for the last ten months ,then the standard deviation of profits for these ten months would be?


152) When it comes to comparing two or more distributions we consider_____


153) Which one is an absolute measures of dispersion ?


154) Which measures of dispersion is the quickest to compute?


155) Which measure is based on only the central fifty percent of the observations?


156) For any two numbers SD is always_____


157) Cosnider following observation relatting to marks obtained by 10 students in CS foundation Exam :210,202,207,222,276,201,246,212,285, 312.Arithmetic mean =?


158) Consider following is the distrbution: Class Intervals 0-10 10-20 20-30 30-40 Frequency 8 10 12 15 Arithmetic mean=?


159) The following is the distrbution of weekly wages of workers in a factory.Calculate the arithmetic mean of the distrbution. Weekly wages No.of ( Rs.) Workers 240-269 7 270-299 19 300-329 27 330-359 15 360-389 12 390-419 12 420-449 8


160) If there are 3 observations15,20,25 then the sum of deviations of the observations from their AM is__________


161) Mr.R purchases 20 kgs of wheat ,10 kgs of rice and 2kgs of ghee every month. If the price of wheat is Rs.10 per kg ,price of rice Rs.14 per kg and price of ghee is Rs.120per kg.Find the average price per kg. per month,Arithmetic mean =?


162) The mean of a certain number of observatiopns is 40 .If two or more items with values 50 and 64 are added to this data ,the mean rises to 42.Find the number of items in the original data.


163) If there are two groups contaning 30 and 20 observations and having 50 and 60 as arithmetic means,then the combined arithmetic mean is____


164) What is the value of mean for the following data : Class interval Frequency 350-369 15 370-389 27 390-409 31 410-429 19 430-449 13 450-469 6 470-489


165) Mr.Ram purchases 20 kgs of wheat ,10 kgs of rice and 2kgs of ghee every month. If the price of wheat is Rs.10 per kg ,price of rice Rs.14 per kg and price of ghee is Rs.120per kg.Find the average price per kg. per month,Arithmetic mean =?


166) The average rainfall for a week,excluding Sunday was 10cms .Due to heavy rainfall on Sunday ,the average for the week rose to 15 cms. How much rainfall was on Sunday ?


167) The mean weight of 20 employees in a company is 65 kgs .And the mean weight of 8 employees is 70 kgs. And another 7 is 55 kgs.You are required to find out the mean weight of remainder.


168) The mean weight of 98 students is found to be 50 ibs .It is later discovered that the frequency of the class intervals (30-40) was wrongly taken as 8 instead of 10. Calculate the correct mean.


169) The average marks of three batches of students having 70,50 and 30 students respectively are 50,55, and 45. Find the average marks of all the 150 students taken together.


170) The mean salary paid per week to 1000 employees of an establishments was we found to be Rs.900 .Later on it was discovered that the salaries of two employees were wrongly recorded as Rs.750. and Rs.365 instead of Rs.570 and Rs.635. Find the corrected mean salary.


171) What is the value of mean for the following data: Marks No of students 5-14 10 15-24- 18 25-34 32 35-44 26 45-54 14 55-64 10


172) The mean salary for a group of 40 females workers is Rs.5,200 per month and that of for a group of 60 male workers is Rs.6,800 per month.What is the combined salary?


173) Find median of the given observation: 25,14,28,30,25,15,32.


174) Find median of the given observation:35,20,55,27,15,40.


175) What is the median for the following observations? 5,8,6,9,11,4.


176) 2,5,8,4,9,6,7,.What is the median for the following obsevations?


177) The following table gives the marks obtaind by 300 students of a management course.Find the median of the distribution. Marks obtained No.of students 0 -15 26 15-30 34 30-45 64 45-60 76 60-75 60 75-90 30 90-100 10


178) Find Median of the following data Age grater than No.of (Years ) Persons 00 230 20 218 30 200 40 165 50 123 60 73 70 288


179) The following table the distrbutions of daily wages of 900 workers.However the frequencies of the two classes 40-50 and 60-70 are missing. If the median of the distribution is Rs. 59.25,Find the missing figures. Class Frequency Cumulative intervals frequency 30-40 120 120 40-50 ? ? 50-60 200 ? 60-70 ? ? 70-80 185 900 Frequency for class 40-50 = ?


180) The following table the distrbutions of daily wages of 900 workers.However the frequencies of the two classes 40-50 and 60-70 are missing. If the median of the distribution is Rs. 59.25,Find the missing figures. Class Frequency Cumulative intervals frequency 30-40 120 120 40-50 ? ? 50-60 200 ? 60-70 ? ? 70-80 185 900 Cumulative Frequency for class 40-50 = ?


181) The following table the distrbutions of daily wages of 900 workers.However the frequencies of the two classes 40-50 and 60-70 are missing. If the median of the distribution is Rs. 59.25,Find the missing figures. Class Frequency Cumulative intervals frequency 30-40 120 120 40-50 ? ? 50-60 200 ? 60-70 ? ? 70-80 185 900 Cumulative Frequency for class 50 -60 = ?


182) The following table the distrbutions of daily wages of 900 workers.However the frequencies of the two classes 40-50 and 60-70 are missing. If the median of the distribution is Rs. 59.25,Find the missing figures. Class Frequency Cumulative intervals frequency 30-40 120 120 40-50 ? ? 50-60 200 ? 60-70 ? ? 70-80 185 900 Cumulative Frequency for class 60-70 = ?


183) Whit is the value of median for the following data: Marks No.of Student 5-14 10 15-24 18 25-34 32 35-44 26 45-54 14 55-64 10


184) Compute mode of the following distribution by inspection method. X 1 2 3 4 5 6 7 8 9 10 f 4 6 8 12 17 11 7 6 5 3


185) Compute mode of the following distribution by method of grouping. X 10 11 12 13 14 15 16 17 18 19 f 8 15 20 100 98 95 90 75 50 30


186) The frequency distribution of marks obtained by 60 students of a class is given below: x 30-34 40-44 45-49 50-54 55-59 60-64 f 3 5 12 18 14 62


187) In a moderately a symmetrical distribution -The mode and median are 75 and 60 respectively, find mean.


188) In a moderately a symmetrical distribution -The mean and mode are 50 and 37.5 respectively, find median.


189) What is the model value for the numbers 5,8,6,4,10,15,18,10?


190) What is the value of mode for the follwing data: Class interval Frequency 350-369 15 370-389 27 390-409 31 410-429 19 430-449 13 450-469 6


191) The standard deviation 10,16,10,16,10,10,16,16 is____


192) Calculate standard deviation of the following data: X 10 11 12 13 14 15 16 17 18 f 2 7 10 12 15 11 10 6 3


193) Calculate standard deviation of the following data X 0-10 10-20 20-30 30-40 40-50 f 10 8 15 8 4


194) Find the mean and srandard deviation of the following observations: X = 2,5,7,8,13


195) The mean and standared deviation of 10 observations are 35 and 2 repectively .Find the changed mean and standard deviation if each observation is increased by 5


196) The mean and standared deviation of 10 observations are 35 and 2 repectively .Find the changed mean and standard deviation if each observation is multiplied by 5


197) If all the observation are increased by 10, then ____


198) If all the observation are multiplied by 2, then _____


199) What is the standard deviation of ,5,5,9,9,9,10,5,10,10.


200) What is the coefficient of variation of the following numbers? 53,52,61,60,64.


201) The Word statistic has its origin from the Latin word_________


202) The word Statistic as used in the earlier days by Italian - ______________


203) The word Statistic as used in the earlier days by Germans - _____________


204) In ancient days, the word statistics was used only for facts and figures required by the state for its official use and was known as _______________


205) It is not possible to think any sphere of human activity where statistics has not crept in.


206) Statistics in the sense of numerical data basically refers to _________ aspects


207) In which sense the word 'statistic' is basically used?


208) " Statistics refers to the classified facts representing the conditions of the people in the state?.. Especially those facts which can be stated in numbers or in tables of numbers or in any tabular classfied arrangement." This definition of statistics was given by ____________


209) "Statistics are collection of notewothy facts concering the state both historical and descriptive." this definition of Statistics was given by ______________


210) " Statistics is an aggregate knowledge brought together for a practical end namely the knowledge of concrete states." this definition of statistics was given by ___________


211) " Statistics is numerical statement of facts in any development of enquiry placed in relation to each other." this definition of Statistic was given by _____________


212) " By statistics, we mean Quantitative data affected to a marked extent by multiplicity of causes."


213) ______________ has given most acceptable, popular and comprehensive definitions of statistics.


214) According to _________, " By statistics we mean aggreagate of facts affected to marked extent by multiplicity of causes, numerically expressed, enumerated or estimated, according to a reasonable standard of accuracy collected in a systematic manner for a pre-determined purpose and placed in relation to each other."


215) Characteristic(s) of statistics: ____________


216) Characteristic(s) of statistics: ____________


217) Statistics must relate to ________ facts


218) The subject matter of statistics is _______


219) Statistical facts are not traceable to a single fact


220) Which of the following constitute statistics?


221) Statistical data relating to any subject could be collected: ______________


222) Statistical data are collected only with______________


223) The collection of statistical data must be in a ____________ manner


224) According to A.L.Bowley, Statistics may be called as __________


225) According to ______," Statistics may be defined as a science of collection, presentation, analysis and interpretation of numerical data."


226) Which of the followig can be treated as important function of statistics?


227) Which of the following can be treated as important function of statistics?


228) Which of the following can be treated as important function of statistics?


229) ____________ is a systematic body of knowledge which studies cause and effect relationship and tries to find out generalisation.


230) Feature(s) of science:___________


231) statistics is _______________


232) Statistics is an exact science or pure science like physics, chemistry.


233) According to Tippet, Statistic is ________


234) _____________ law provides the basis of theory of probability in statistics.


235) According to ______, if a large sample is taken from a population in a random way, it is bound to be fairly representative of the population.


236) According to _______, the larger the size of sample, the more accurate the results are likely to be.


237) Which of the fllowing condition is necessary to hold good the law of statistical regularity?


238) Statistics which deals with the numerical data can be classified as _________


239) _____________ includes the techniques such as collection and tabulation of data, averages or measures of central tendency, index number, dispersion, skewness, which help in summarizing and describing the main features of data.


240) This division of statistics is concerned with the application of statistical methods and techniques to the specific problems and facts of real life situations as they exist can be classified as _________


241) _____________ covers those methods and techniques of statistics which are used to draw conclusions and statistical inferenrces about the parameters of population on the basis of estimates derived from a sample.


242) __________ refers to those methods and techniques of statistics which help in estimating a particular phenomenon on the basis of random observation.


243) Business forecasting is done with the help of ______________


244) __________ is that branch of statistics which is concerned with the application of various mathematical theories and techniques such as theory of measures and integration, differentiation, algebra, trignometry, matrix theory etc. to develop various statistical thoeries and techniques.


245) _______consists of those methods which are used in establishing functional relationship between variables. It is attempted through comparison, between two sets of data at a point of time in crossection data or between two points of tim otherwise.


246) Important techniques from the part of analytical statistics includes __________


247) Statistics is useful to state Autorities as it helps in formulating ________


248) Statistical information basically helps to understand the ________


249) Statistics is applied in _____________


250) Statistics helps to formulate various principles and enables us to compare the theories in real life situations.


251) In Which of the following fields / areas the use of statistics and statistical techniques can better examined?


252) In Which of the following fields / areas the use of statistics and statistical techniques can better examined?


253) Which of the following can be treated as limitation of statistics?


254) Which of the following can be treated as limitation of statistics?


255) Which of the following can be treated as limitation of statistics?


256) Which of the following sentence shows distrust about statistics?


257) Which of the following sentence shows distrust about statistics?


258) Which of the following statement is False?