assign5 - PSTAT 120C Assignment 5 Due These questions are...

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Unformatted text preview: PSTAT 120C: Assignment # 5 Due May 18, 2006 These questions are due at the start of lecture next Thursday. 1. From a population that contains 40% Democrats, 40% Republicans and 20% Independents, (a) What is the probability that a committee of 5 randomly selected people will contain 2 Republicans, 2 Democrats, and 1 Independent? (b) What is the probability that a committee of 6 randomly selected people will have more Independents than Democrats? 2. In the baseball World Series, the two teams play until one of them wins 4 games. This could take as many as 7 games. If the outcomes of the games are independent and both teams are equally likely to win each game, the probability distribution of the length of the series is Number of Games 4 5 6 7 Probability .125 .25 .3125 .3125 In the 55 World Series played since 1950 the actual length was Number of Games 4 5 6 7 Count 11 8 12 24 Test whether this is significantly different from what would be predicted by the probability calculation....
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assign5 - PSTAT 120C Assignment 5 Due These questions are...

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