Mathematics, 05.12.2019 04:31 jdjxbxnshd2080

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 cumulative 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...