Population of U.S. Cities
bigcity data frame has 49 rows and 2 columns.
city data frame has 10 rows and 2 columns.
The measurements are the
population (in 1000's) of 49 U.S. cities in 1920 and 1930. The 49 cities are
a random sample taken from the 196 largest cities in 1920. The
frame consists of the first 10 observations in
This data frame contains the following columns:
The 1920 population.
The 1930 population.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.