NCERT Class XI Mathematics - Statistics - Solutions
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Question : 4
Total: 34
36, 72, 46, 42, 60, 45, 53, 46, 51, 49
Solution:
Arranging the data in ascending order,
we have 36, 42, 45, 46, 46, 49, 51, 53, 60, 72
Here n = 10 (which is even)
So median is the average of 5th and 6th observations
Median (M) =
∴ M.D. about median =
| x i − M |
we have 36, 42, 45, 46, 46, 49, 51, 53, 60, 72
Here n = 10 (which is even)
So median is the average of 5th and 6th observations
Median (M) =
| 36 | 42 | 45 | 46 | 46 | 49 | 51 | 53 | 60 | 72 | Total | |
| | 11.5 | 5.5 | 2.5 | 1.5 | 1.5 | 1.5 | 3.5 | 5.5 | 12.5 | 24.5 | 70 |
∴ M.D. about median =
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