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Answer: DSet 4: Probability (Beginner)
Explanation
PROBLEM
A bag contains 21 balls, 6 of which are green. What is the probability of randomly selecting a green ball?
A bag contains 21 balls, 6 of which are green. What is the probability of randomly selecting a green ball?
A.
7/2
B.
3/7
C.
2/8
D.✓ Correct
2/7
Detailed Explanation
Choice D is the best answer. P = favorable/total = 6/21 = 2/7
Why others are wrong:
A: 7/2 is incorrect because it does not satisfy the equation.
B: 3/7 is incorrect because it does not satisfy the equation.
C: 2/8 is incorrect because it does not satisfy the equation.