Statistical Analysis System (SAS) Programming Certification Practice Exam

When using the MEANS procedure in SAS, the default statistics produced include the mean, standard deviation, minimum, and maximum of the specified variables. The standard deviation is a key measure of variability that indicates the extent to which data points differ from the mean. It provides insight into the dispersion of data; a small standard deviation suggests that the data points are close to the mean, while a large standard deviation indicates a wider spread.

The median, range, and standard error of the mean are not included by default in the output of the MEANS procedure. The median provides the midpoint value in a dataset, the range gives the difference between the maximum and minimum values, and the standard error of the mean indicates how far the sample mean is likely to be from the population mean. While these statistics can be essential in certain analyses, they require additional options to be specified in the MEANS procedure if you want to include them in your output.