MCQOPTIONS
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| 1. |
If both the mean and the standard deviation of 50 observations x1, x2, …,x50 are equal to 16, then the mean of(x1 - 4)2, (x2 - 4)2,….(x50 - 4)2 is: |
| A. | 400 |
| B. | 380 |
| C. | 525 |
| D. | 480 |
| Answer» B. 380 | |