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If P(B|A) = P(B), then events A and B are independent. True or false?
Question
If P(B|A) = P(B), then events A and B are independent. True or false?
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Mathematics
5 years
2021-07-24T19:58:41+00:00
2021-07-24T19:58:41+00:00 1 Answers
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Answer:
True
Step-by-step explanation:
Conditional probability is:
P(B|A) = P(B and A) / P(A)
If A and B are independent, then P(B and A) = P(B) × P(A).
P(B|A) = P(B) × P(A) / P(A)
P(B|A) = P(B)