Find (a) E (X) (b) E (2X +5)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 28E
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1 A random variabie X is defined by
X =- 2
with a prob. of 1/3
with a prob. of 1/2
with a prob. of 1/6
Find (a) E (X) (b) E (2X +5)
=3
1:
Transcribed Image Text:1 A random variabie X is defined by X =- 2 with a prob. of 1/3 with a prob. of 1/2 with a prob. of 1/6 Find (a) E (X) (b) E (2X +5) =3 1:
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