Question: Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class
Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class are:
| 7 | 7 | 14 | 8 |
| 8 | 10 | 11 | 10 |
| 10 | 8 | 15 | 15 |
a. Find the mean of the reading scores. (Type an integer or a decimal. Round to two decimal places.)
b. Find the standard deviation of the reading scores.(Type an integer or a decimal. Round to two decimal places.)
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