200504016-2 Calculating and Graphing Single-VariableStatistical DataSingle-variable data is data with only a single variable. If you are calculating the averageheight of the members of a class for example, there is only one variable (height).Single-variable statistics include distribution and sum. The following types of graphs areavailable for single-variable statistics.You can also use the procedures under “Changing Graph Parameters” on page 6-1-2 to makethe settings you want before drawing each graph.kkkkk Normal Probability Plot (NPP)This plot compares the data accumulated ratio with a normal distribution accumulated ratio.XList specifies the list where data is input, and Mark Type is used to select from among themarks { / × / • }you want to plot.Press A, J or !J(QUIT) to return to the statistical data list.kkkkk Histogram (Bar Graph) (Hist)XList specifies the list where the data is input, while Freq specifies the list where the datafrequency is input. 1 is specified for Freq when frequency is not specified.6-2-1Calculating and Graphing Single-Variable Statistical Data⇒w(Draw)The display screen appears as shown above before the graph is drawn. At this point, youcan change the Start and Width values.
