(a) For a group of 10 items,1010Σ X-2 = 40 and ΣΧ 495.i = /Then find the variance of this group.(b) For 10 values X1, X2, ..., X10 of the variable X,1010ΣΧ=110 andΣ (-5)2-1,000.i == /i = |Find variance of X.

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Answered: (a) For a group of 10 items, 10 10 E…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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(a) For a group of 10 items, 10 10 E (X; - 2) = 40 and E X} = 495. %3D i = 1 Then find the variance of this group. (b) For 10 values X1, X2, ..., X10 of the variable X, 10 10 E X; = 110 and E (X;- 5) 2 = 1,000. Find variance of X.