The following data are the result of a historical study of the number of flaws found in

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The following data are the result of a historical study of the number of flaws found in a porcelain cup produced by a manufacturing firm. Use these data and the associated probabilities to compute the expected number of flaws and the standard deviation of flaws.

Flaws Probability

0 ...........461

1 ...........285

2 ...........129

3 ...........087

4 ...........038

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