Mathematics, 10.07.2019 17:30 Reese8802

Suppose we roll a die repeatedly until we see each number at least once and let r be the number of rolls required. find the mean and variance of r.
the answers in the back of the book are mean= 14.7 rolls and variance is 38.99

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Suppose we roll a die repeatedly until we see each number at least once and let r be the number of r...

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