Statisticshard · Past Paper
A bag contains 4 red and 6 black balls. Two balls are drawn at random without replacement. What is the probability that both are red?
A4/25
B2/15
C4/15
D1/3
✓ Correct Answer: B — 2/15
P(1st red) = 4/10. P(2nd red) = 3/9. Total = (4/10) * (3/9) = 12/90 = 2/15.
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