Answered: f(x, y) = .006x, 0≤x≤ y ≤ 10 1. Find…

f(x, y) = .006x, 0≤x≤ y ≤ 10 1. Find the covariance between X and Y. Explain why the sign of the covariance makes sense in the context of the problem.

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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f(x, y) = .006x, 0≤x≤ y ≤ 10
1. Find the covariance between X and Y. Explain why the sign of the covariance makes
sense in the context of the problem.

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When you found marginal density of Y, bounds of 0 to y were used on the integral. When the marginal densitiy of X was found, bounds of 0 to 10 were used. Wouldnt the bounds of x to 10 be necessary when finding the marginal desnisty of X?

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