1 The table below gives the height of men (in inches) and their shoe sizes.
Shoe size (x)
Predicted Values (C)
Residuals (D)
Height in inches
(y)
8.5
66
9
67.5
9.5
70
10
70
10
72
11
71.5
11.5
73
12
73.5
12
74
12.5
74
A. Using the data in the table and the desmos calculator, find the linear
regression equation
B. Copy the table onto your paper
C. Use the linear regression equation to find the predicted values.
D. Use what you've learned to find the residual values.
E. Plot the residuals in Desmos. Does the residual plot have a pattern?
(Yes/No) Does this make a good model? (Yes/No)
F. What percentage of the data is more than from 10.3 from the predicted