Question

If an integer from 3 through 14 is chosen at random, what is the

probability that the number chosen is NOT prime?

Answer 1

Answer:
`(7)/(12)`

Explanation:

Given

There are integer between 3 and 14 available to be chosen (total 12 integers)

Prime integers among them

3,5,7,11,13 i.e. total of 5 prime integers

So the probability that the number chosen is not Prime

`=1-P\text{(no is prime)}`

`=1-(5)/(12)`

`=(12-5)/(12)`

`=(7)/(12)`