1.

Numbers are selected at random, one at a time, form the two digit numbers 00,01,02, ........, 99 with replacement. An event E occurs if and only if the product of the two digits of a selected number is 18. If four numbers are selected, find the probability that the event E occurs at least 3 times.

Answer»

Numbers are selected at random, one at a time, form the two digit numbers 00,01,02, ........, 99 with replacement. An event E occurs if and only if the product of the two digits of a selected number is 18. If four numbers are selected, find the probability that the event E occurs at least 3 times.





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