2. 职称英语
  3. Let A, B, C, and D be events for which P(A or B)= 0.6, P(A)= 0.2,P(C or D)= 0.6

Let A, B, C, and D be events for which P(A or B)= 0.6, P(A)= 0.2,P(C or D)= 0.6

游客2024-01-12  50
问题 Let A, B, C, and D be events for which P(A or B)= 0.6, P(A)= 0.2,
P(C or D)= 0.6, and P(C)= 0.5. The events A and B are mutually exclusive, and the events C and D are independent.
(a)Find P(B)
(b)Find P(D)
选项
答案 (a)0.4(b)0.2
解析
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