Question

Calculate the value of Mean deviation from the mean using the following data X:32, 21 38 25 20 32 34 28 40 29

Answer 1

Answer:

251.22

Explanation:

Mean=sum of observation

_____________________

no of observation

May this will help you

Answer 2

Given : 32, 21 38 25 20 32 34 28 40 29

To Find : Mean deviation from the mean

Solution:

$& Mean=\frac{\text{sum of all the obervations}}{\text{number of the observations}} \\ & Mean=\overline{x}=\frac{\sum\limits_{i=1}^{n}{{{X}_{i}}}}{n}$

32, 21 38 25 20 32 34 28 40 29

Mean = (32 + 21 + 38 + 25 + 20 + 32 + 34 + 28  + 40 + 29) /10

= 299/10

= 29.9

X      | X - mean |          

32  2.1

21  8.9

38 8.1

25  4.9

20  9.9

32 2.1

34 4.1

28  1.9

40 10.1

29  0.9

        53

Mean Deviation from mean = ∑( | X - mean |  )/n

= 53/10

= 5.3

Mean deviation from the mean is 5.3

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