Mathematics, 07.03.2020 00:42 makennskyee7114

Suppose that--in any given time period--a certain stock is equally likely to go up 1 unit or down 1 unit, and that the outcomes of different periods are independent. Let X be the amount the stock goes up (either 1 or -1) in the first period, and let Y be the accumulative amount it goes up in the first three periods. Find the correlation between X and Y.

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Suppose that--in any given time period--a certain stock is equally likely to go up 1 unit or down 1...

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