Q. 25.0( 1 Vote )

If the sum of the squares of deviations for 10 observations taken from their mean is 2.5, then write the value of standard deviation.

Answer :

Given, The sum of the squares of derivations for 10 observation, and mean is 2.5.

To Find: Find the standard derivation


Explanation: Here, N=10 and mean = 2.5


The square of each division =


Standard deviation



Hence, standard deviation is 0.5


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