19) Numbers are selected at random, one at a time, from the numbers 00, 01, 02, ..., 99, with replacement. An event A occurs if the product of the two digits of a selected number is 18. If 4 numbers are selected, then probability that A occurs at least 3 times is

27) India plays 2 matches each with West Indies and Australia. In any match, probabilities of India getting 0, 1, 2 points are 0.45, 0.05, 0.50 respectively. If the outcomes are independent, then the probability of India getting at least 7 points is