6
Answer: CSet 3: Probability (Beginner)
Explanation
PROBLEM
A bag contains 18 balls, 9 of which are green. What is the probability of randomly selecting a green ball?
A bag contains 18 balls, 9 of which are green. What is the probability of randomly selecting a green ball?
A.
17/18
B.
1/18
C.✓ Correct
1/2
D.
2/1
Detailed Explanation
Choice C is the best answer. P = favorable/total = 9/18 = 1/2
Why others are wrong:
A: 17/18 is incorrect because it does not satisfy the equation.
B: 1/18 is incorrect because it does not satisfy the equation.
D: 2/1 is incorrect because it does not satisfy the equation.