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Unformatted text preview: 6. What are the “two” conditions for a valid discrete random variable (or discrete probability distribution)? 7. Which of the following is valid discrete random variable? X 1 2 3 Y12 3 f(x) 0.1 0.3 0.4 f(y) 0.3 0.1 0.6 W 1 2 3 f(w)0.1 0.3 0.8 f(x)=1/5, x=0, 1, 2, 3, 4 f(y)=1/5, y=0, 1, 2, 3, 4, 5 f(z)=z/6, z=1, 2, 3 f(w)=w/5, w=1, 2, 3 8. Find E(X), Var(X), and s.d.(X) for a discrete random variable X. HW Assignment: Ch. 2  #14, 15, 16, 17, 24, 26, 29, and 31...
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This note was uploaded on 09/21/2011 for the course QMSC 3321 taught by Professor Louieren during the Fall '11 term at University of HoustonVictoria.
 Fall '11
 louieren

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