Calculate mean of the following data :
$30, 62, 25, 47, 52, 39, 56, 63$

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Solution

Finding mean of the given data
Given data, $30, 62, 25, 47, 52, 39, 56, 63$
Since, $M e a n = \frac{S u m o f a l l o b s e r v a t i o n s}{T o t a l N u m b e r o f O b s e r v a t i o n s} . . . . . (i)$
Now, total number of observation $= 8$ [ From the given data]
sum of all observation $= 30 + 60 + 25 + 47 + 52 + 39 + 56 + 63 = 374$
So, Mean $= \frac{374}{8} = 46.75$ [Using equation (i)]
Hence, mean of the given data is $46.75$ .

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