Statisticsmedium · Past Paper
A box contains 4 red, 5 black, and 6 white balls. One ball is drawn at random. What is the probability that the ball is not black?
A1/3
B2/3
C5/15
D1/5
✓ Correct Answer: B — 2/3
Total = 15. Not black = 4 red + 6 white = 10. P = 10/15 = 2/3.
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