Polynomial order: 4
Polynomial order: 5
Polynomial order: 6
Polynomial order: 1
Polynomial order: 2
Polynomial order: 3
0
1
2
3
0
1
2
3
0
1
2
3
-1
0
1
2
-1
0
1
2
Predictor X
Inquiry: conditional expectation of outcome Y.
Answer strategy: predicted value of Y from linear regression