The following table shows part of the probability distribution for a random variable x.X01234f(x)0.15?0.3?0.2(a) The mean of the above distribution is known to be 2.15 (i.e., E(x)= 2.15). Determine f(1) and (3).f(1) =f(3) =(b) Compute the variance and the standard deviation for the above probability distribution. (Round your standard deviation tothree decimal places.)variancestandard deviation

We have given that probability distribution table.

Answered: x f(x) (3) 0 0.15 1 ? 2 0.3 3 ? 4 0.2…

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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