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In the following data
Variable: 20 19 18 17 16 15 14 13 12 11
Frequency: 1 2 4 8 11 10 7 4 2 1
The mean variable is
1.16:44
2.16:54
3.15:44
4.15:54

Average age of a class of 39 boys is 10 years, but by the admission of ...

The mean deviation about the mean for the following series-10,13,22,18,15,24 ...

In the following data
Variable: 20 19 18 17 16 15 14 13 12 11 ...

Median of the following is
25,13,4,6,3,11,15,10
1.4.5

The mean and the standard deviation of a distribution is 30 and 5 ...

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