MCQOPTIONS
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| 1. |
The mean of 21 observation (all different) is 40. If each observation greater than the median is increased by 21 then the mean of observation will become: |
| A. | 50 |
| B. | 30 |
| C. | 50.5 |
| D. | 45 |
| Answer» B. 30 | |