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Unformatted text preview: c. That is, , where c is a positive constant. Show that 1 } { = c X P 4 ) var( 2 c X . Probability Questions for Jan 2008 2. Coin A is flipped at times 1,3,5, and coin B is flipped at times 2,4,6, . The probability that the outcome is TAIL is p A for coin A and p B for coin B. Let T be the number of the flip when the first TAIL is observed. Find ET . Probability Questions for Jan 2008 3. Let X and Y be random variables with the joint cumulative distribution function F X,Y (x,y) defined by F X,Y (x,y) = sin x sin y , where x,y /2. Find E[XY]....
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This note was uploaded on 01/31/2011 for the course AMS 507 taught by Professor Feinberg,e during the Fall '08 term at SUNY Stony Brook.
 Fall '08
 Feinberg,E

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