Suppose that A1,A2,and B are events where A1 and A2 are mutually exclusive events and
P(A1) = .7 P(A2) = .3 P(B│A1) = .2 P(B│A2) = .4
Find P(A1│B) .
A) 0.12
B) 0.26
C) 0.21
D) 0.14
E) 0.28
Correct Answer:
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