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Independent events have P(A) = 0.3 and P(B) = 0.5. What is P(B given A)?

A0.8
B0.15
C0.3
D0.5
Answer & Solution
Correct answer: D. 0.5
Joint chance 0.15 divided by P(A) = 0.3 returns 0.5, so knowing A leaves B unchanged.
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