Statisticshard · Past Paper
A and B are two students. The probability that A solves a problem is 1/2 and B solves it is 1/3. What is the probability that the problem is solved?
A5/6
B2/3
C1/6
D1/3
✓ Correct Answer: B — 2/3
P(solved) = 1 - P(neither solves) = 1 - (1/2 * 2/3) = 1 - 1/3 = 2/3.
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