(5) A discrete random variable X has the probability mass function f(x) = c(x + 1)², x=-1,0, 1. You must show work when answering the following questions. (a) Determine the value of the constant c. (Please double check your answer. We will not give partial credit if you don't get this part right.) (b) Find the mean and the variance of X. (c) Give a formula or a sketch of F(x), the cumulative distribution function of X.

(5) A discrete random variable X has the probability mass function f(x) = c(x + 1)², x=-1,0, 1. You must show work when answering the following questions. (a) Determine the value of the constant c. (Please double check your answer. We will not give partial credit if you don't get this part right.) (b) Find the mean and the variance of X. (c) Give a formula or a sketch of F(x), the cumulative distribution function of X.

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.CR: Chapter 13 Review

Problem 31CR

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