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Section_2.3[1]

# Section_2.3[1] - for all four data sets So the point is(3 3...

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The Regression Line: Section 2.3 1. Here are the data sets from the correlation homework with the correct values of r. In each data set, f8e5 X = f8e5 Y = 3 and s x = s y = 2. For each data set find the regression equation, and draw the regression line on the scatterplot that you made for that homework. a. X Y b. X Y c. X Y d. X Y 1 1 1 1 1 1 1 6 2 2 2 2 2 4 2 4 2 2 2 4 2 2 2 2 4 4 4 2 4 6 4 2 6 6 6 6 6 2 6 1 r =1 r = .75 r = .25 r = ! .8125 e. All regression lines go through the point of averages, ( f8e5 x, f8e5 y). In this question and
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Unformatted text preview: for all four data sets. So the point is (3, 3). Circle the point on your x = 3 y = 3 graphs. 2. Find the regression equations for the women’s health data (the last question) from the correlation homework. Draw the line on your scatterplots from that homework. The values of r for that data are r = ! .96 for “High Control” and r = +.90 for “Self-Rated Health was Average or Worse.”...
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