\name{ex12.19} \alias{ex12.19} \docType{data} \title{data from exercise 12.19} \description{ The \code{ex12.19} data frame has 14 rows and 2 columns. } \format{ This data frame contains the following columns: \describe{ \item{area}{ a numeric vector } \item{emission}{ a numeric vector } } } \details{ } \source{ Devore, J. L. (2003) \emph{Probability and Statistics for Engineering and the Sciences (6th ed)}, Duxbury } \examples{ data(ex12.19) } \keyword{datasets}