The lengths (in cm) of 10 rods in a shop are 40.0, 52.3, 55.2, 72.9, 52.8, 79.0, 32.5, 15.2, 27.9, 30.2 . Find the mean deviation from the mean also.

Asked by Sakshi | 1 year ago |  73

1 Answer

Solution :-

Find the mean deviation from the mean also.

We know that,

Where, |di| = |xi – x|

So, let ‘x’ be the mean of the given observation.

x =

\(\dfrac{ [40.0 + 52.3 + 55.2 + 72.9 + 52.8 + 79.0 + 32.5 + 15.2 + 27.9 + 30.2]}{10}\)

\( \dfrac{458}{10}\)

= 45.8

Number of observations, ‘n’ = 10

= \(\dfrac{1}{10}\) × 166.4

= 16.64

The Mean Deviation is 16.64

Answered by Aaryan | 1 year ago

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