First-year college Grade Point Average (GPA) from Graybill and Iyer (1994).
GPA is a data frame with 5 variables. y is the first-year college
Grade Point Average (GPA) and x1-x4 are four predictor variables
from standardized tests (SAT) administered before matriculation.
math score on the SAT
verbal score on the SAT
high school math
high school English
Graybill, F.A. and Iyer, H.K. (1994). Regression analysis: concepts and applications. Duxbury Press, Belmont, CA.
Burnham, K. P. and Anderson, D. R (2002) Model selection and multimodel inference: a practical information-theoretic approach. 2nd ed. New York, Springer-Verlag.
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