P(A)= 0.20 P(B)= 0.25 P(A and B)= 0.10 What is P(B|A) ?
回答 (2)
2019-03-18 10:34 pm
P(B|A)
= P(B and A) / P(A)
= P(A and B) / P(A)
= 0.10 / 0.20
= 0.50
= P(B and A) / P(A)
= P(A and B) / P(A)
= 0.10 / 0.20
= 0.50
2019-03-18 10:27 pm
P(B|A) = P(A ∩ B) / P(A)
收錄日期: 2021-05-01 22:30:45
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