Math 12 Practice Test 2 Fall, 2014
Let the probability distribution of a random variable X be given as follows:
(a) (5 points) Filwfj
b 20 oints Find the mean and variance of X. . S
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Practice Final Exam
1. For two events A and B, P(A) = 0.50, P(B) = 0.20, and P(AB) = 0.15.
(a) Find P(B | A)_ : 1%? t
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(b) Find P(A H B). -,
(c) Find the probability that at least one of the two events will occur.