We draw 8 cards, one at a time, randomly, and without replacement from an ordinary deck of 52 cards. For i=1,2,..., 8 let Xi = { 1 if the ith card drawn is a heart, 0 otherwise (a) Find the variance of Xi for each i=1,2, ... , 8. (b) Compute Cov(Xi, Xj), i =/= j.

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We draw 8 cards, one at a time, randomly, and without replacement from an ordinary deck of 52 cards. For i=1,2,..., 8 let

Xi = { 1 if the ith card drawn is a heart, 0 otherwise

(a) Find the variance of Xi for each i=1,2, ... , 8.

(b) Compute Cov(Xi, Xj), i =/= j.

 

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