6.20. (a) For a group of 10 items,1010E (X;-2) = 40 andi = 1E X} = 495.i = 1Then find the variance of this group.(b) For 10 values X1, X2,X10 of the variable X,...y1010E X; = 110 andi = 1E (X;- 5) 2 = 1,000.i = 1Find variance of X.

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Answered: 6.20. (a) For a group of 10 items, 10…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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6.20. (a) For a group of 10 items, 10 10 E (X;-2) = 40 and i = 1 E X? = 495. 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. i = 1 i = 1 Find variance of X.