A bag contains 4 red balls, 5 blue balls, and 3 green balls. If one ball is drawn at random, what is the probability that it is NOT blue?
A5/12
B7/12
C1/3
D3/4
Explanation
Total balls = 4 + 5 + 3 = 12. Non-blue balls = 4 red + 3 green = 7. Probability of drawing a non-blue ball = Favorable outcomes / Total outcomes = 7/12.
Exam Relevance
- Topic: Probability
- Subtopic: Single Event Probability
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