Stat 5131 (Geyer) Old Second Midterm

# Stat 5131 (Geyer) Old Second Midterm - mentioned in class...

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Up: Stat 5131 Stat 5131 Second Midterm Exam, November 12, 1997 Problem 1 A random variable X has p. d. f. f defined by a. Find the mean of X . b. Find the variance of X . Problem 2 A pair of random variables X and Y have joint p. d. f. Find the conditional p. d. f. of X given Y . Problem 3 The conditional p. d. f. of Y given X is Find the regression function of Y on X . (You may use the formula

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Unformatted text preview: mentioned in class without rederiving it). Problem 4 Suppose X , Y , and Z are exchangeable with mean 0, variance 1, and correlation - 0.5. a. Find . b. Find . Problem 5 For 0 < p < 1, the function is the moment generating function of a probability distribution. Find the mean and variance. Charles Geyer 1998-09-25...
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## This note was uploaded on 10/28/2010 for the course STAT 5101 taught by Professor Staff during the Spring '02 term at Minnesota.

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Stat 5131 (Geyer) Old Second Midterm - mentioned in class...

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