Interval Frequency Stock analysis . The price-earning ratios of 100 randomly selected stocks from the New York
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Question:
| Interval | Frequency | ||
| Stock analysis. The price-earning ratios of 100 randomly selected stocks from the New York Stock Exchange are: | 0.54.5 | 3 | |
| 4.59.5 | 60 | ||
| 9.514.5 | 21 | ||
| 14.519.5 | 11 | ||
| 19.524.5 | 2 | ||
| 24.529.5 | 1 | ||
| 29.534.5 | 2 |
a. Find the mean of the price-earning ratios. (Type an integer or a decimal. Round to two decimal places.)
b. Find the standard deviation of the price-earning ratios. (Type an integer or a decimal. Round to two decimal places.)
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