5

Set 5: Probability (Beginner)

Explanation

Answer: A

PROBLEM

A bag contains 11 balls, 5 of which are green. What is the probability of randomly selecting a green ball?

A bag contains 11 balls, 5 of which are green. What is the probability of randomly selecting a green ball?

A.

5/11

✓ Correct
B.

6/11

C.

11/5

D.

6/11

Detailed Explanation

Choice A is the best answer. P = favorable/total = 5/11 = 5/11

Why others are wrong:
B: 6/11 is incorrect because it does not satisfy the equation.
C: 11/5 is incorrect because it does not satisfy the equation.
D: 6/11 is incorrect because it does not satisfy the equation.