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# samplequiz - P A B = P A P B This statement is(a True(b...

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STA 4321/5325 Sample Quiz Fall 2010 Name: All problems have exactly one correct answer. Problem 1 Consider an experiment which consists of tossing a fair coin 1000 times. The total number of possible outcomes for the complete experiment is (a) 2 1000 . (b) 1000 2 . (c) 2. (d) 1000. Problem 2 Consider an experiment for which all outcomes are equally likely. There are 5 possible outcomes in event A and there are 9 possible outcomes in event B . Then (a) P ( A ) = P ( B ). (b) P ( A ) > P ( B ). (c) P ( A ) < P ( B ). (d) P ( A ) = 3. Problem 3 If A

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Unformatted text preview: P ( A [ B ) = P ( A ) + P ( B ). This statement is (a) True. (b) False. Problem 4 The total number of ways of choosing r objects from n objects with replace-ment when order is not important is (a) C n + r ± 1 r . (b) n r . (c) C n r . (d) P n r . Problem 5 Let us recollect that ± denotes the empty set. For every event A (a) P ( A \ ± ) = 0. (b) P ( A \ ± ) = 1. (c) P ( A \ ± ) > 0. (d) P ( A \ ± ) < 0....
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