What statement is used to display a total at the end of a group?

The BREAK statement is used in SAS to define how data should be grouped and to control the presentation of totals in certain procedures, particularly in report generation contexts. When employed within a reporting procedure, it allows you to specify where a summary total appears, such as at the end of a group of data.

Using the BREAK statement, you can define a breakpoint in your data processing that triggers the calculation of summary statistics, which can include totals, counts, and other aggregate measures. This is particularly useful when working with procedures like PROC REPORT where you want to present data hierarchically and include totals for each level of grouping.

Other options represent components of SAS programming but serve different purposes. The RBREAK statement is closely related but is specifically for generating summary statistics at the end of a report, which is slightly different than just grouping and displaying totals. The GROUP statement is more about defining how data is organized rather than showing totals. The DISPLAY statement isn't a standard SAS procedure statement and does not pertain to grouping data or calculating totals. Thus, the BREAK statement serves the specific purpose of displaying totals at the end of a group efficiently, making it the most appropriate choice.