Question: The question is listed below Exercise 4 (10 pts.). Expectation and Variance. 1. Suppose there are 111 cards numbered 1 through 111. Draw a card

The question is listed below

Exercise 4 (10 pts.). Expectation and Variance. 1. Suppose there are 111 cards numbered 1 through 111. Draw a card at random. Let X be the number of digits on the card (between 1 and 3) and let Y be the number of zeros. Find Cov(X, Y)

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