MCQOPTIONS
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| 1. |
The numbers of visitors every hour in a shop from 1 p.m. to 8 p.m. on Monday were recorded as 7, 10, 15, 22, 6, 4 and 13. The arithmetic mean of visitors is: |
| A. | 13 |
| B. | 9 |
| C. | 10 |
| D. | 11 |
| Answer» E. | |