(3) Suppose you are given a random variable X with the pmf f(x) = b(x + 2)2, S = {−1,0,1,2,3,4}. (a) What is b? (b) Graph the cdf for X. (c) Calculate P (X ≤ 2) in two ways: using the pmf directly, and using the cdf directly.

(3) Suppose you are given a random variable X with the pmf f(x) = b(x + 2)2, S = {−1,0,1,2,3,4}. (a) What is b? (b) Graph the cdf for X. (c) Calculate P (X ≤ 2) in two ways: using the pmf directly, and using the cdf directly.

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

(3) Suppose you are given a random variable X with the pmf f(x) = b(x + 2)2, S = {−1,0,1,2,3,4}.
(a) What is b?
(b) Graph the cdf for X.
(c) Calculate P (X ≤ 2) in two ways: using the pmf directly, and using the cdf directly.

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