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3. Two variables, x and y, have a correlation of 0.75. If x has a mean of 25 and a standard deviation of 3, and y has a mean of 12 and a standard deviation of 6, which of the following is the least-squares regression line for the two variables?
(A) y(hat) = -25.5+1.5x
(B) y(hat) = 12+1.5x
(C) y(hat) = 12+0.75x
(D) y(hat) = 16+0.75x
(E) Not enough information
(A) y(hat) = -25.5+1.5x
(B) y(hat) = 12+1.5x
(C) y(hat) = 12+0.75x
(D) y(hat) = 16+0.75x
(E) Not enough information
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Anonymous
The answer is A...you're welcome :-)
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