(vi) f(z) = 0.3(0.7)* , z = 0,1, · - ', (ix) f(z) %3D %3D =(*+1)z = 1,2, -

A First Course in Probability (10th Edition)
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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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(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, -..
Transcribed Image Text:(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)
Transcribed Image Text: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)
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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,

Probability homework question answer, step 1, image 1

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,

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