\name{ex09.90} \alias{ex09.90} \title{data from exercise 9.90} \description{ The \code{ex09.90} data frame has 8 rows and 3 columns. } \format{ This data frame contains the following columns: \describe{ \item{Number}{ a numeric vector } \item{Region1}{ a numeric vector } \item{Region2}{ a numeric vector } } } \details{ } \source{ Devore, J. L. (2000) \emph{Probability and Statistics for Engineering and the Sciences (5th ed)}, Duxbury } \examples{ data(ex09.90) } \keyword{datasets}