Radon readings for a stratified sample of 1003 homes in Minnesota. The data were downloaded in April 2008 from an earlier version of the website now located at https://www.stat.berkeley.edu/users/statlabs/labs.html.
data(radon)
This data frame contains the following columns:
county name
county number
sample size in county
population size in county
radon concentration (picocuries per liter)
Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.
Lu and Lohr (2021), R Companion for Sampling: Design and Analysis, 3rd Edition, 1st Edition. Boca Raton, FL: CRC Press.