The mean square deviation of a set of n observation x_1, x_2, .... x_n about a point c is defined as 1/n \sum^{n}_{i=1} (x_i-c)^2 The mean square deviations about – 2 and 2 are 18 and 10 respectively, the standard deviation of this set of observations is

BITSAT 2015 Paper

Section: Mathematics

Question : 99 of 150

Marks: +1, -0

The mean square deviation of a set of n observation x1,x2, .... xn about a point c is defined as

i=1

(xi−c)2
The mean square deviations about – 2 and 2 are 18 and 10 respectively, the standard deviation of this set of observations is

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