322Quiz01Fall11

322Quiz01Fall11 - Instructor : H.H. Kim 1 Econometrics Quiz...

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Instructor : H.H. Kim Econometrics 1 Quiz 01 Name: ______________________ 1. Find the probability in the following using the applicable probability distribution table. a. If Y is distributed t 90 , find Pr( - 1.99 Y 1.99) b. If Y is distributed N (0,1), find Pr( - 1.99 Y 1.99) c. If Y is distributed F 4,7 , find Pr( Y > 4.12) 2. Consider two random variables X and Y. Suppose that Y is normally distributed with mean 4, and variance 5, and X is also normally distributed with mean 5, and variance 3. And we know that the mean of XY is 18 . New random variable Z is defined as Z = 1+2X+3Y. a. What is the mean of Z? b. What is the variance of Z?
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Fall 2011 Rutgers University 2 3. [EXTRA] You are at a college of roughly 1,000 students and obtain data from the entire freshman class (250 students) on height and weight during orientation. You consider this to be a population that you want to describe, rather than a sample from which you want to infer general relationships in a larger population. Weight (
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This note was uploaded on 10/04/2011 for the course ECON 322 taught by Professor Francisco during the Spring '07 term at Rutgers.

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322Quiz01Fall11 - Instructor : H.H. Kim 1 Econometrics Quiz...

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