The 3 month demand for a spare car part has the following probability mass function: x 0 1 2 p(x) 0.25 0.5 0.25 a) What is the probability that there will be at most 1 unit of demand during the time period? b) What is the variance of the demand?
The 3 month demand for a spare car part has the following probability mass function: x 0 1 2 p(x) 0.25 0.5 0.25 a) What is the probability that there will be at most 1 unit of demand during the time period? b) What is the variance of the demand?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 22E
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The 3 month demand for a spare car part has the following
x | 0 | 1 | 2 |
p(x) | 0.25 | 0.5 | 0.25 |
a) What is the probability that there will be at most 1 unit of demand during the time period?
b) What is the variance of the demand?
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