Register
1. A number is chosen at random from 1 to 25. Find the probability of not selecting a prime number. 2. A number is chosen at random from 1 to 25. Find the probability of not selecting a composite number.
101k views
2 votes
1. A number is chosen at random from 1 to 25. Find the probability of not selecting a prime number.

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

User Johanisma
by
7.4k points

1 Answer

4 votes
prime numbers are 2,3,5,7,11,13,17,19,23 that's 9 of them the other 16 are not prime (1,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25)
so 16/25 or 64% is the probability of not getting a prime number

User Slypete
by
8.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!