A box contains 3 red, 4 white, and 5 blue balls. If one ball is drawn at random, what is the probability that it is NOT red?
A1/4
B1/2
C3/4
D5/6
Explanation
Total balls = 3 + 4 + 5 = 12. Non-red balls = 4 + 5 = 9. Probability = 9 / 12 = 3/4.
Exam Relevance
- Topic: Probability
- Subtopic: Selection
No Comments