A cumulative average recalculates a data set's average as new data is added. During the recalculation all data contained in the data set is included in the average. In Microsoft Excel your spreadsheet ...

Plotting the frequency of data falling within numeric ranges illustrates the diversity of your data. As an example, a teacher might wish to calculate and display her students' grades by tabulating the ...

Box plots present the same data in a different way and can be used to make comparisons between two similar datasets. Add an additional column, if not provided, to the grouped frequency table. Label ...