Question

1. A number is chosen at random from 1 to 25. Find the probability of not selecting a prime number.

Answer 1

64%

Explanation:

1. Nine prime numbers between 1 and 25.

2. 25-9 = 16

3. Sixteen non-prime numbers between 1 and 25.

4. 16/25 = 0.64 = 64%

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