Find the variance and standard deviation of the following probability distributions.XP(X)X*P(X)X2X2*P(X)11/4 21/8 31/8 41/2 Choices6.15 ; 2.483.48 ; 1.271.61 ; 1.271.61 ; 2.482.24 ; 7.183.48 ; 1.87

Given that: X P(X) 1 14 2 18 3 18 4 12

Answered: Find the variance and standard…

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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X	P(X)	X*P(X)	X²	X²*P(X)
1	1/4
2	1/8
3	1/8
4	1/2

Find the variance and standard deviation of the following probability distributions. X P(X) X*P(X) X2 X2*P(X) 1 1/4 2 1/8 3 1/8 4 1/2 Choices 6.15 ; 2.48 3.48 ; 1.27 1.61 ; 1.27 1.61 ; 2.48 2.24 ; 7.18 3.48 ; 1.87

Find the variance and standard deviation of the following probability distributions. X P(X) XP(X) X2 X2P(X) 1 1/4 2 1/8 3 1/8 4 1/2 Choices 6.15 ; 2.48 3.48 ; 1.27 1.61 ; 1.27 1.61 ; 2.48 2.24 ; 7.18 3.48 ; 1.87