Let X be a discrete random variable that takes on the values 2, 3, 4, 5, 6, 7 with respective probabilities .15, .10, .20.20, .20, .15.The following table summarizes this: Answer the following using R code.Xp(x)234.15 .10 .205.2067.20 .15a. Find the probability that x² > 15. 0.75b. Calculate the expected value ex of X 4.65c. Calculate the expected value ex2 of X² 24.25

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Answered: a. Find the probability that x² > 15.…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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a. Find the probability that x² > 15. 0.75 b. Calculate the expected value ex of X 4.65 c. Calculate the expected value ex2 of X² 24.25