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January 27, 2015

January 27, 2015

Posted by **Susan** on Saturday, December 5, 2009 at 6:39am.

(A) 50.

(B) 100.

(C) 0.

(D) 1.

(E) There is not enough information to tell.

- Economics/Math -
**economyst**, Saturday, December 5, 2009 at 2:44pmYou state that q and z are perfectly positively correlated. This alone says the covariance of q and z is 1. The rest of the information you provide is a red herring.

- Economics/Math -
**Susan in response to economyst**, Saturday, December 5, 2009 at 4:32pmThank you for responding. The solution, however, is shown as 100. Wouldn't the coorelation coefficient be 1 but not necessarily the covariance?

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