PSAT scores versus SAT scores

Source: R/BSDA-package.R

Data for Exercise 2.50

Psat

Format

A data frame/tibble with seven observations on the two variables

psat

PSAT score

sat

SAT score

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples


model <- lm(sat ~ psat, data = Psat)
par(mfrow = c(1, 2))
plot(Psat$psat, resid(model))
plot(model, which = 1)

rm(model)
par(mfrow = c(1, 1))