Last year, the author wrote 126 checks. Let the random variable x represent the number of checks

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Last year, the author wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume that it has a Poisson distribution. What is the mean number of checks written per day? What is the standard deviation? What is the variance?

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Elementary Statistics

ISBN: 9780321500243

11th Edition

Authors: Mario F. Triola

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