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Question
A sample of charge accounts at a local drug store revealed the following frequency distribution of unpaid balances.| Unpaid Balance ($) | Frequency |
| 10 - 29 | 5 |
| 30 - 49 | 10 |
| 50 - 69 | 6 |
| 70 - 89 | 9 |
| 90 - 109 | 20 |
a. Determine the mean unpaid balance.
b. Determine the standard deviation.
c. Compute the coefficient of variation.
Answer
This answer is hidden. It contains 21 characters.
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