R/families.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Survey of weekly family income and food expenditure.
#'
#' These data are from a hypothetical survey of family income and food expenditure. No information
#' is given about the population.
#'
#' @format A data frame with 33 observations and three variables:
#' \describe{
#'    \item{size:}{number of family members}
#'    \item{income:}{weekly family income}
#'    \item{cost:}{weekly family expenditure on food}
#' }
#'
#' @source Cochran, W. G. (1977). \emph{Sampling techniques} (3rd Edition). New York: Wiley.
"families"