Probability Mcqs

Q.  The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?

a. 21/25
b. 17/25
c. 4/25
d. 8/25


ANSWER: See Answer
 
The number of exhaustive events = ⁵⁰C₁ = 50.

We have 15 primes from 1 to 50.
Number of favourable cases are 34.
Required probability = 34/50 = 17/25.
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