Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 4 Probability 0.267 0.291 0.238 0.148 0.040 0.016 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average batch of 1000 machine parts has V The standard deviation is so the typical number of defects in a batch of 1000 (Round to one decimal place as needed.)

Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 4 Probability 0.267 0.291 0.238 0.148 0.040 0.016 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average batch of 1000 machine parts has V The standard deviation is so the typical number of defects in a batch of 1000 (Round to one decimal place as needed.)

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
1
2
3
4
Probability
0.267
0.291
0.238
0.148
0.040
0.016
(a) Find the mean, variance, and standard deviation of the probability distribution.
The mean is
(Round to one decimal place as needed.)
The variance is.
(Round to one decimal place as needed.)
The standard deviation is
(Round to one decimal place as needed.)
(b) Interpret the results.
V The standard deviation is1. so the typical number of defects in a
hal
The mean is , so the average batch of 1000 machine parts has
batch of 1000
(Round
one decimal place as needed.)
Enter your answer in each of the answer boxes.
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