=-1 with a prob. of 1/6. Find (a) E [X, + X2+ .. ... X„] (b) E [X + X3 + ... XI

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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14 Let X1 X, ...X, be 'n' random variable which are identically distributed such
that
with a prob. of I/2
Xx= 1
= 2
with a prob. of 1/3
=-1 with a prob. of 1/6.
Find (a) E [X1+ X2 + .. .. X/
(b) E [X} + X3+ . .. X2I
Transcribed Image Text:14 Let X1 X, ...X, be 'n' random variable which are identically distributed such that with a prob. of I/2 Xx= 1 = 2 with a prob. of 1/3 =-1 with a prob. of 1/6. Find (a) E [X1+ X2 + .. .. X/ (b) E [X} + X3+ . .. X2I
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