Robert Lamy is an equity advisor. One day he gathered information about three microeconomic variables X, Y, Z. He noticed that whenever variable X increased by one unit, variable Y decreased by 0.3 units but variable C increase by 0.3 units. The correlation between variables X and Y and the correlation between variables X and Z, respectively, are closest to: Correlation between Correlation between Variables X and YVariables X and Z() ①A. -0.3 1.0 ②B. -0.3 0.3 ③C. -1.0 1.0
A.①
B.②
C.③