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\name{ex01.78}\alias{ex01.78}\title{data from exercise 1.78}\description{The \code{ex01.78} data frame has 15 rows and 2 columns.}\format{This data frame contains the following columns:\describe{\item{Length}{a factor with levels\code{10-<12}\code{12-<14}\code{14-<16}\code{16-<18}\code{18-<20}\code{20-<22}\code{22-<24}\code{24-<26}\code{26-<28}\code{28-<30}\code{30-<35}\code{35-<40}\code{40-<45}\code{6-<8}\code{8-<10}}\item{Frequency}{a numeric vector}}}\details{}\source{Devore, J. L. (2000) \emph{Probability and Statistics for Engineering and the Sciences (5th ed)}, Duxbury}\examples{data(ex01.78)}\keyword{datasets}