Find the mean deviation from the mean for the following data:

 xi 10 30 50 70 90 fi 4 24 28 16 8

Asked by Sakshi | 1 year ago |  31

Solution :-

To find the mean deviation from the mean, firstly let us calculate the mean.

By using the formula,

$$x= \dfrac{\displaystyle\sum fixi}{fi}$$

$$x= \dfrac{\displaystyle\sum f_ix_i}{f_i}$$

= $$\dfrac{ 4000}{80}$$

= 50

$$x= \dfrac{\displaystyle\sum f_i|d_i|}{f_i}$$

$$\dfrac{1280}{80}$$

= 16

The mean deviation is 16

Answered by Aaryan | 1 year ago

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