The number of defects per 1000 machine parts inspected Defects 0 1 2 3 4 5 Probability 0.255 0.294 0.235 0.158 0.042 0.016 (a) Find the mean, variance, and standard deviation of the probability distribution.
The number of defects per 1000 machine parts inspected Defects 0 1 2 3 4 5 Probability 0.255 0.294 0.235 0.158 0.042 0.016 (a) Find the mean, variance, and standard deviation of the probability distribution.
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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Use the probability distribution to complete parts (a) and (b) below.
The number of defects per 1000 machine parts inspected
|
Defects
|
0
|
1
|
2
|
3
|
4
|
5
|
|
|---|---|---|---|---|---|---|---|
|
Probability
|
0.255
|
0.294
|
0.235
|
0.158
|
0.042
|
0.016
|
(a) Find the mean, variance, and standard deviation of the probability distribution.
The mean is
1.51.5.
(Round to one decimal place as needed.)
The variance is
1.51.5.
(Round to one decimal place as needed.)
The standard deviation is
enter your response here.
(Round to one decimal place as needed.)
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