Answer last part (10) Find Std(X) when X is a discrete random variable with the following given density.(i) f(z) = ,z = 6,7, 8, 9, 10,(iii) f(z) = I = 1,2,..,n, where n = 100,(9(,)(v) f(z) =I = 0,1,2, 3,(9)(vii) f(z) = 0.3(0.7), z = 0,1,..,(ix) f(z),I = 1,2, -.. V7/30.7/V0.3V0.7/0.37/3None of the aboveN/A(vii- Select One)Does not exist134N/A(xi- Select One)

Answered: (vi) f(z) = 0.3(0.7)* , z = 0,1, · - ',…

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...

See similar textbooks

Related questions

Question

Answer last part

(10) Find Std(X) when X is a discrete random variable with the following given density.
(i) f(z) = ,z = 6,7, 8, 9, 10,
(iii) f(z) = I = 1,2,..,n, where n = 100,
(9(,)
(v) f(z) =
I = 0,1,2, 3,
(9)
(vii) f(z) = 0.3(0.7), z = 0,1,..,
(ix) f(z)
,I = 1,2, -..

V7/3
0.7/V0.3
V0.7/0.3
7/3
None of the above
N/A
(vii- Select One)
Does not exist
1
3
4
N/A
(xi- Select One)

Expert Solution

Step 1

Expectation of a Discrete Random Variable: The expectation of a discrete random variable X, denoted by E(X), is defined as a measure of central tendency of the probability distribution of X. If X has the values x₁, x₂, ... with probabilities p₁, p₂, ... then the expectation of X is given by,

Standard Deviation of a Random Variable: The standard deviation of a random variable X is defined as a measure of dispersion of the probability distribution of X. It is given by,