Q. 113.7( 8 Votes )

Find the probability that a number selected from the numbers 1 to 25 is not a prime number when each of the given numbers is equally likely to be selected.

Answer :

Outcomes= 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25

Prime Numbers = 2,3,5,7,11,13,17,19,23

Let x be the event of getting prime numbers


Therefore the probability of getting non-prime number =

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