Indicate numeric variables to be summarized. If you do not specify any variables here or in the List-Style Specification of Variables to Be Summarized field, then all numeric variables in the data set are summarized.All of the variables in the input data set are displayed in the Available Variables field.
Left-click variables in the Available Variables field. To select multiple variables, hold down while left-clicking.
Click to add the selected variable(s) to the Variables to be Summarized field.