If Cov(X,Y) = 270, then what is Cov(16X, 3Y)?    If Cov(X,Y) = 13, then what is Cov(.50X, 100Y)?    If Cov(X,Y) = 404, then what is Cov(12X,19Y)?   If Cov(X,Y) = 639, then what is Cov(19X,10Y)?   Suppose Cov(X,Y) = 43. What is Cov(0.23X, 0.33Y)?    Suppose Cov(X,Y) = 872. What is Cov(0.99X, 0.86Y)?   If Cov(X,Y) = 808, then what is Cov(10X,4Y)?    If Cov(X,Y) = 100, then what is Cov(2X, 10Y)?

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