You flip a fair coin 5 times and record 1 if heads and -1 if tails. Let r be the sum ofthe realized values across the 5 flips. Let X be the random variable corresponding tothe sum where X r.a) Calculate Er] = x.b) Calculate var(X) = E[X²]- .c) Calculate var(X2).

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Answered: You flip a fair coin 5 times and record…

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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You flip a fair coin 5 times and record 1 if heads and -1 if tails. Let r be the sum of the realized values across the 5 flips. Let X be the random variable corresponding to the sum where X r. a) Calculate Er] = #x. b) Calculate var(X) = E[X²]- . c) Calculate var(X2).