Question

Find the probability that a number selected from the numbers 1 to 25 which is not a

prime number when each of the given number is equally likely to be selected.

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Answer 1

Answer:

Step-by-step explanation:

Total no. of possible outcomes = 25 {1, 2, 3, … 25} E ⟶ event of getting a prime no. No. of favourable outcomes = 9 {2, 3, 5, 7, 11, 13, 17, 19, 23} Probability, P(E) = (No.of favorable outcomes)/(Total no.of possible outcomes) = 9/25 Bar E⟶ event of not getting a prime no. P(Bar E) = 1−P(E)=1−9/25 = 16/25Read more on Sarthaks.com - https://www.sarthaks.com/102453/find-the-probability-that-a-number-selected-from-the-number-1-to-25-is-not-a-prime-number