# Let x and y denote the seat numbers of the first and

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Let X and Y denote the seat numbers of the first and second individuals, respectively. Possible (X, Y) pairs are {(1, 2), (1, 3), . . . , (5, 4)}, and the joint pmf of (X, Y) is 3 5.2 p(x,y)= Find the expected value for the number of seats seperating two individuals. Covariance The covariance between two rv’s X and Y is Cov(X, Y) = E[(X – X)(Y – Y)] = 4 5.2 Depending on whether X and Y are discrete or continuous. An simplified formula for the covariance is: Cov(X,Y) = E(XY) ‒ µX µY 5 5.2 Exercise 2: A nut company markets cans of delux mixed nuts containing almonds, cashews, and p...
View Full Document

## This note was uploaded on 01/24/2014 for the course STAT 3502 taught by Professor Ouldhaye during the Summer '08 term at Carleton CA.

Ask a homework question - tutors are online