a. Suppose X is a random variable with mean u. What can you say about P(X > 3µ)?b. Suppose in addition, that X has variance o². What can you say about P(μ-30 < X < μ +30)?

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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. Suppose X is a random variable with mean μ. What can you say about P(X> 3u)? b. Suppose in addition, that X has variance o². What can you say about P(u - 30 < X < µ +30)?