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For two events, A and B, P(A) = .4, P(B) = .2, and P(A
Chapter 3, Problem 50E(choose chapter or problem)
QUESTION:
Problem 50E
For two events, A and B, P(A) = .4, P(B) = .2, and P(A|B) = .6:
a. Find P(A B).
b. Find P(B|A).
Questions & Answers
QUESTION:
Problem 50E
For two events, A and B, P(A) = .4, P(B) = .2, and P(A|B) = .6:
a. Find P(A B).
b. Find P(B|A).
ANSWER:
Solution :
Step 1 of 2:
Let A and B be the two events.
P(A) = 0.4, P(B) = 0.2, and P(AB) = 0.6.
Our goal is:
a). Find P(AB).
b). Find P(B/A).
a).
Now we have to find P(AB).
The P(AB) is
P(AB) = P(A/B)
Then,
P(AB) =
P(AB) =
Therefore P(AB) =
.