Question

A number is selected at random from the numbers 1,4,9,16 and another number y from 1,2,3,4 find the probability that the value of xy is more than 16

Answer 1

It have to be 6/8 or 3/4 cause all of them are over 16

Answer 2

Lets draw a sample space of the possible outcomes of xy-

S= (1, 2, 3, 4, 4, 8, 12, 16, 9, 18, 27, 36, 16, 32, 48, 64)

Total no. of outcomes= 4*4= 16

No. of outcomes greater than than 16= 6

So; Probability of xy>16 = 6/16 = 3/8