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 enter your response here. ​(Round to one decimal place as​ needed.)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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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
enter your response here.
​(Round to one decimal place as​ needed.)
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