Question
Would you please help with method to solve this problem. Do not understand the reference to r2.
30. Write the Equation and r for the scatterplot: Equation:
0 0
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Answer #1

from scatter plot data points are

( 0,1) ( 2,3) ( 3,2) ( 4,4) ( 5,6) ( 6,8) ( 7,7) ( 8,9)

finding equation of regression line

Step 1: Find X.Y and X2 as it was done in the table below X.Y 2 4 2 16 30 48 49 72 4 4 16 25 49 64 Step 2: Find the sum of ev

equation is y = 1.043x + 0.439

finding value of r^2

8.227- 35.40 0.9506 18-203-352j ·Įs . 260 402 8-203-358 260

r^2 = 0.9036

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