MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
In a piston assembly, the specifications for the clearance between piston rings and the cylinder wall are very tight. In a lot of assemblies, let X be the number with too little clearance and let Y be the number with too much clearance. The total number of assemblies that fail to meet specifications is X + Y. The joint probability mass
y |
||||
---|---|---|---|---|
x |
0 |
1 |
2 |
3 |
0 |
0.15 |
0.12 |
0.11 |
0.10 |
1 |
0.09 |
0.07 |
0.05 |
0.04 |
2 |
0.06 |
0.05 |
0.04 |
0.02 |
3 |
0.04 |
0.03 |
0.02 |
0.01 |
Find µX+Y. (Round the final answer to two decimal places.)
Find σX+Y. (Round the final answer to four decimal places.)
Find P(X + Y = 3). (Round the final answer to two decimal places.)
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