MCQ
The mean deviation of the data $3,10,10,4,7,10,5$ from the mean is
- A3.75
- ✓2.57
- C3
- D2
| Data (xi) | $d _{ i }=\left| x _{ i }-\bar{x}\right|$ |
| 3 | =|3-7|=4 |
| 10 | =|10-7|=3 |
| 10 | =|10-7|=3 |
| 4 | =|4-7|=3 |
| 7 | =|7-7|=0 |
| 10 | =|10-7|=3 |
| 5 | =|5-7|=2 |
| Total | $\Sigma d _{ i }=18$ |
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