Suppose P(A)= 0.2 P(B)= 0.6 and P(not A n not B) = 0.22.
Are event A and event B independent?
math probability independent?
2009-10-04 10:39 pm
回答 (1)
2009-10-04 10:43 pm
✔ 最佳答案
P(A) = 0.2P(not A) = 1 - P(A) = 0.8
P(B) = 0.6
P(not B) = 1 - P(B) = 0.4
P(not A n not B) = 0.22
But P(not A) X P(not B) = 0.8 X 0.4 = 0.32 =/= 0.22
So, A and B are not independent.
參考: Physics king
收錄日期: 2021-04-19 15:26:49
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