For a random variable XE(X) = 1.27, E(X²) = 3.79 The variance of X is equal toSelect one:O 2.52O 2.9843O 2.1771O 0.7580.3351

We have given that, E(X) = 1.27 and E(X2) = 3.79 Then We will find the variance of X ?

Answered: For a random variable X E(X) = 1.27,…

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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For a random variable X E(X) = 1.27, E(X²) = 3.79 The variance of X is equal to Select one: O 2.52 2.9843 2.1771 O 0.758 O 0.3351