Recent content by CescGoal

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    What is the correlation of X and Z in terms of variance and covariance?

    I didn't know about that law; thankyou very much.
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    What is the correlation of X and Z in terms of variance and covariance?

    Very sorry that I've double posted but I realized i placed the original post in Precalculus. 1. Homework Statement Question Let X and Y be independent random variables with variances 9 and 7 respectively and let Z = X - Y a) What is the value of Cov(X,Z) b) What is the value of...
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    Converting Velocity from mph to ft/s: How to Rewrite a Constant Formula

    I believe you would just multiply the equation the same way HallsofIvy has done; it's called the Grid Method.