The probability mass function of X = the number of major defects in an electrical appliance of a randomly selected type is: Calculate the following: a) E (X) b) V (X) directly from the definition

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 66E
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The probability mass function of X = the number of major defects in an electrical appliance of a randomly selected type is:

Calculate the following:
a) E (X)
b) V (X) directly from the definition

1
2
3
4
p(x)
0.08
0.15
0.45
0.27
0.05
Transcribed Image Text:1 2 3 4 p(x) 0.08 0.15 0.45 0.27 0.05
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