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Question
The following is a frequency distribution for the ages of a sample of employees at a local company.| Age | Frequency |
| 30 - 39 | 2 |
| 40 - 49 | 3 |
| 50 - 59 | 7 |
| 60 - 69 | 5 |
| 70 - 79 | 1 |
a. Determine the average age for the sample.
b. Compute the variance.
c. Compute the standard deviation.
d. Compute the coefficient of variation.
Answer
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