# Question

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

Flaws .... Probability

0 ..... .461

1 ..... .285

2 ..... .129

3 ..... .087

4 ..... .038

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