(1.1)The slope of a regression equation is 10, the value where the line intersec

Question

(1.1)The slope of a regression equation is 10, the value where the line intersects the Y axis when X = 0 is 4. What is the regression equation?

A. X = 0 + 10Y

B. Y = 10- 4X

C. Y = 4 + 10X

D. Y = 4- 10X

E. none of the above

(1.2)Which one of the following numbers couldn’t possibly be a value of correlation coefficient?

A. 0.00

B. –1.00

C. 1.00

D. 1.03

(1.3) If everyone paid taxes equal to 10 percent of their total annual income, the value of correlation coefficient for income and taxes would be nearest to

A. 0.00

B. –1.00

C. 1.00

D. None of the above

Explanation / Answer

solution:-
(1.1) option C. Y = 4 + 10X
explanation:- when x = 0 then
Y = 4 + 10(0)
Y = 4

(1.2) option D. 1.03

(1.3) option C. 1.00

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