NUMBER OF KILOWATT

ROOMS HOURS

12 16

9 10

14 20

6 5

10 11

8 7

10 12

10 14

7 8

9 16

a. Find X and Y. Find the regression equation. Calculate a and b.

b. Determine the number of kilowatt-hours, in thousands, for a 11 room house.

c. Find the coefficient of determination and interpret its meaning.

d. Find the coefficient of correlation and interpret its meaning.

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