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Calculator Shortcut for Covariance of XY given probability

Is there any calculator shortcut to solve this?

https://ibb.co/JQBxf4f

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You can use the STAT worksheet to calculate the mean return for A and B and the mean return for the product of A and B.  Enter the probabilities as whole numbers for Y and calculate covariance as mean return for A and B -(mean return for A * mean return for B).

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