Based on past results found in the Information Please Almanac, there is a 0.1919 probability that a
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Based on past results found in the Information Please Almanac, there is a 0.1919 probability that a baseball World Series contest will last four games, a 0.2121 probability that it will last five games, a 0.2222 probability that it will last six games, and a 0.3737 probability that it will last seven games.
a. Does the given information describe a probability distribution?
b. Assuming that the given information describes a probability distribution, find the mean and standard deviation for the numbers of games in World Series contests.
c. Is it unusual for a team to “sweep” by winning in four games? Why or why not?
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