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Suppose U = 2T - 1 where T is a geometric random variable with parameter p. What is Var(U)?

Suppose U = 2T - 1 where T is a geometric random variable with parameter p. What is Var(U)?

A First Course in Probability (10th Edition)
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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Suppose U = 2T - 1 where T is a geometric random variable with parameter p. What is Var(U)? Select one: O a. (4-4p-p²)/p² b. None of the other choices c. 4(1 − p)/p² - O d. 4(1-p-p²)/p² O e. 2(1 - p)/p²
Transcribed Image Text:Suppose U = 2T - 1 where T is a geometric random variable with parameter p. What is Var(U)? Select one: O a. (4-4p-p²)/p² b. None of the other choices c. 4(1 − p)/p² - O d. 4(1-p-p²)/p² O e. 2(1 - p)/p²
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