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4: 1) If the E(XY) = 5 and the mean of X and Y are both equal to 3, then what is the covariance of the random variable 3x and y.

4: 1) If the E(XY) = 5 and the mean of X and Y are both equal to 3, then what is the covariance of the random variable 3x and y.

A First Course in Probability (10th Edition)
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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Hello there plz solve this math question 

24: 1) If the E(XY) = 5 and the mean of X and Y are both equal to 3, then what is the covariance of the random variable 3x and y. 2) The conditional probability distribution of X givenY is given by f(X/Y)= for 0<x<y, where E(Y) = 2. Find E(X).
Transcribed Image Text:24: 1) If the E(XY) = 5 and the mean of X and Y are both equal to 3, then what is the covariance of the random variable 3x and y. 2) The conditional probability distribution of X givenY is given by f(X/Y)= for 0<x<y, where E(Y) = 2. Find E(X).
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