I get a stupid question - 金融分析師

※ 引述《acts (acts)》之銘言：
: ※ 引述《acts (acts)》之銘言：
: : A and B are Mutually exclusive
: : C and D are Mutually exclusive
: : if P(A) = 0.1
: : P(D) = 0.5
: : P(A and D) = 0.05
: : What is the probability for P(B and C)
: : Help me thank you so much
: Actually forget what the detail is for this problem.
: I am so sorry
: Is there anyone who could figure out how to get the answer for this
: type of problem?
一直忘了要回這題
我已經把題目修正成合理的範圍了
____
P(B∩C) = P(A∪D)

我想關鍵只有這個吧..由倆倆互斥可得知

1-P(B∩C) = P(A)+P(D)-P(A∩D) = 0.1+0.5-0.05 = 0.55
P(B∩C)=0.45

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