Answered: find 1- FIND E (X) 2- FIND THE…

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Statistics

find 1- FIND E (X) 2- FIND THE VARIANCE

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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Question

find

1- FIND E (X)

2- FIND THE VARIANCE

PLEASE WRITE YOUR ANSWER WITH FULL DETAILS TO HELP ME TO UNDERSTAND THE WAY WELL

I FOUND THIS ANSWER HERE BUT I DIDNOT UNDERSTAND ANYTHING

We know the formula for mean
E(X) = fxf(x)dx
E(X) =
=
= 0 +
-∞0
xf(x) dx + √xf(x) dx
+ [₁ * x ( + x ² ² ) dx
-(x2 + 4x+8)e-
2
=
4
E(X) = 4
The mean = 4
KN

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