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

16/25

Step-by-step explanation:

The prime numbers between 2 and 25 are as follows:

2, 3, 5, 7, 11, 13, 17, 19, 23

There are 9 numbers, so 9/25 numbers are prime. Since we're looking for numbers that are not prime, we will subtract 25 numbers by 9 prime numbers. The result is 16. Since we have 16 non-prime numbers, our probability of not finding a prime number will be 16/25

Extra answers:

If you're looking for a decimal your answer is:

0.64

If you're looking for a percentage, your answer is:

64%