Set 1: Probability (Beginner)

**Choice A is the best answer.** P = favorable/total = 3/12 = 1/4

Explanation

Answer: A

PROBLEM

A bag contains 12 balls, 3 of which are red. What is the probability of randomly selecting a red ball?

1/4

✓ Correct

1/5

2/4

11/12

Detailed Explanation

Choice A is the best answer. P = favorable/total = 3/12 = 1/4

Why others are wrong:

B: 1/5 is incorrect because it does not satisfy the equation.

C: 2/4 is incorrect because it does not satisfy the equation.

D: 11/12 is incorrect because it does not satisfy the equation.