This example shows how to create box plots and how to specify SYMBOL definitions so data outside the box-plot range can be represented with data points. It also shows how to change a box plot's ...

Last week’s post, “A Histogram is NOT a Bar Chart ”, explained that bar charts were used for comparing categorical variables and that histograms were used to show the distributions of binned ...

This example uses the flight delay data of the preceding example to illustrate how you can create box charts with various styles of box-and-whisker plots. For simplicity, the control limits are ...

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 ...