a. Using the pairs of values for all 1010 points, find the equation of the regression line. b. After removing the point with coordinates left parenthesis 2 comma 3 right parenthesis(2,3), use the pairs of values for the remaining 99 points and find the equation of the regression line. c. Compare the results from parts (a) and (b).

02468100246810xy A scatterplot has a horizontal x-scale from 0 to 10 in increments of 1 and vertical y-scale from 0 to 10 in increments of 1. Ten points are plotted with nine points, (4, 6), (5, 6), (6, 6), (4, 7), (5, 7), (5, 7), (6, 7), (4, 8), (5, 8), and (6, 8), forming a square and the tenth point (2, 3) being below and to the left of the square.

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Part 1

a. What is the equation of the regression line for all

1010

points?

ModifyingAbove y with caretyequals=enter your response hereplus+enter your response herex

(Round to three decimal places as needed.)

Part 2

b. What is the equation of the regression line for the set of

99

points?

ModifyingAbove y with caretyequals=enter your response here

(Round to three decimal places as needed.)

Part 3

c. Choose the correct description of the results below.

A.

The regression line changes, but the change is small.

B.

The regression line is very similar in both cases.

C.

There is no regression line for the second case because the data are in a pattern.

D.

The removal of the point has a significant impact on the regression line.