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rPRACTICE3(complete)

# rPRACTICE3(complete) - Bunker Hill Community College Center...

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Bunker Hill Community College MAT181/MAT183 Center for Self-Directed Learning Brase & Brase Rev. 1/09 Practice Test #3 1. Give a brief answer with explanation for each part. a) If P(A) = 0.78, what is P(A C )? b) Suppose a sample space has four equally likely, mutually exclusive outcomes identified as A, B, C, and D. What is the value of P(A or B)? c) Suppose a sample space has four equally likely, mutually exclusive outcomes identified as A, B, C, and D. What is the value of P(A and B)? 2. An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball. a) If you select one ball from the urn what is the probability that it is blue or white? b) If you draw two balls without replacing the first one, what is the probability that the first is red and the second is white? c) If you draw two balls but replace the first one, what is the probability that the first is red and the second is white?

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