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march 2023
07

Mathematics Questions and Answers March 07, 2023

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MATH 2131 3.00 MS2 Assignment 3 Total marks = 55 Question 1: Let (X, Y ) have the joint pdf ( 8xy, 0 < x < y < 1, fX,Y (x, y) = 0, otherwise. (a) (4 marks). Find E(XY ). (b) (6 marks). Find Cov(X, Y ). (c) (4 marks). Find X,Y . Question 2: Let X1 , . . . , Xn P be a random sample on mean is Pnr.v. X whose n 2 2 2 and variance is . Let X = i=1 Xi

2.A sample spaceSyields five equally likely events,A,B,C,D, andE. a.FindP(D). b.FindP(B c ). c.FindP(ACE). I am having a hard time with this math. Can anyone help me out?

Not sure if I answered these correctly The National Immunization Survey reported the immunization rate (the percentage of children aged 12 to 35 months who have received all their recommended shots) for each of a random sample of 37 communities throughout the United States. The data are summarized in the stemplot below. Stem-and-leaf of ImmRate N

Conditional Expectation and Conditional Variance # Suppose that X and Y are two jointly distributed random variables with joint probability distribution f(x,y= {x+y, for 0

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