SOLVED: Given the least-squares regression line Yhat = 5 2X, what may be said about the relationship between the two variables, X and Y?A. The relationship between X and Y is positive.B. The relationship between X and Y is negative.C. As X increases, so does Y.D. The mean of the independent variable for all levels of the independent variable can be connected by a straight line.

In Exercise 40, the line drawn on the scatterplot is the least-squares regression line. Explain the meaning of the phrase "least-squares" to Joan, who knows very little about statistics. | Numerade

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