Life expectancy and per capita income for 20 industrialized countries
and 9 petroleum exporting countries. Note that there is a missing
value for South Africa.
Usage
ex0327
Arguments
Format
A data frame with 29 observations on the following 4 variables.
Country
a character vector indicating the country
Life
life expectancy (years)
Income
income in 1974 (U.S. dollars)
Type
factor variable with levels
"Industrialized" and "Petroleum"
References
Leinhardt, S. and Wasserman, S.S. (1979). Teaching Regression: An
Exploratory Approach, The American Statistician33(4):
196--203.