Set 5: Probability (Beginner)

**Choice B is the best answer.** P = favorable/total = 12/15 = 4/5

Explanation

Answer: B

PROBLEM

A bag contains 15 balls, 12 of which are blue. What is the probability of randomly selecting a blue ball?

A.

11/15

B.

4/5

✓ Correct

C.

4/15

D.

5/4

Detailed Explanation

Choice B is the best answer. P = favorable/total = 12/15 = 4/5

Why others are wrong:

A: 11/15 is incorrect because it does not satisfy the equation.

C: 4/15 is incorrect because it does not satisfy the equation.

D: 5/4 is incorrect because it does not satisfy the equation.