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The discrete random variable X has probability distribution given by X₂ 1 2 3 P 0.7 2k k (1) Find the value of k. (2) Find E(X),Var (X) and the standard deviation of X.

The discrete random variable X has probability distribution given by X₂ 1 2 3 P 0.7 2k k (1) Find the value of k. (2) Find E(X),Var (X) and the standard deviation of X.

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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The discrete random variable X has probability distribution given by X 1 2 3 P 0.7 2k k (1) Find the value of k. (2) Find E(X),Var (X) and the standard deviation of X.
Transcribed Image Text:The discrete random variable X has probability distribution given by X 1 2 3 P 0.7 2k k (1) Find the value of k. (2) Find E(X),Var (X) and the standard deviation of X.
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