Dont plagarise and read the question carefully please and do it correctly and solve it as soon as possibl

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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Dont plagarise and read the question carefully please and do it correctly and solve it as soon as possible 

2) Suppose X is a random variable with E(X²) = 3 and Var(X)= 2. E(X) = ?
Transcribed Image Text:2) Suppose X is a random variable with E(X²) = 3 and Var(X)= 2. E(X) = ?
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