Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...

This is a preview. Log in through your library . Abstract In a field experiment, shoot densities of three pleurocarpous chalk grassland bryophytes, Calliergonella cuspidata, Ctenidium molluscum and ...

Bar Chart: a chart with horizontal bars that show frequencies or percentages for the categories. It is a graphical equivalent of a summary table. Chartjunk: a chart that has unnecessary details. It ...