We roll two dice once. Let X denote the number of 1’s and Y the number of 6’s obtained. Are X and Y independent?
Are X and Y independent?
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probability
dice
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6Don't think so... if $X=2$, can $Y$ be anything other than $0$? – 2012-04-28
1 Answers
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Is $P((X=1) \cap (Y=2))=P(X=1)P(Y=2)$?
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1No, thanks for th$e$ example – 2012-04-29