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 joint probability mass function of X and Y is given in the table below: 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 Cov(X, Y). (Round the final answer to four decimal places. Include a minus sign if necessary.)
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 joint probability mass function of X and Y is given in the table below: 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 Cov(X, Y). (Round the final answer to four decimal places. Include a minus sign if necessary.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 21E
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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 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 Cov(X, Y). (Round the final answer to four decimal places. Include a minus sign if necessary.)
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