1.Find the value of the linear correlation coefficient r. Round to 3 decimal places.

(47, 8), (46, 10), (27, 10)

A. 0

B. 0.156

C. -0.538

D. 0.538

2.Find the value of the linear correlation coefficient r. Round to 3 decimal places.

(2, 7), (4, 11), (5, 13)

A. -1

B. 0

C. 15

D. 1

3.Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.

(47, 8), (46, 10), (27, 10)

A.y = 4.88 + 0.625x

B. y = 11.538- 0.055x

C. y= 4.98 + 0.725x

D. y= 4.98 + 0.425x

4.Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.

(2, 7), (4, 11), (5, 13)

A. y= 4.91 + 0.0212x

B. y= 5.81 + 0.497x

C.y= 3 + 2x

D.Y= 2.51 + 0.329x