MCQOPTIONS
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MCQOPTIONS
| 1. |
Find the mean deviation from mean of the observations: a, a+d, ., (a+2nd). |
| A. | n(n + 1)d<sup>2/3</sup> |
| B. | n(n + 1)d<sup>2</sup>/2 |
| C. | a + n(n + 1)d<sup>2</sup>/2 |
| D. | n(n + 1)d/(2n + 1) |
| Answer» E. | |