Suppose we have a list of subjects that are enumerated from 1 to n. We wish to choose a random subset of size k from this group without replacement. How can we do so?

To execute the **RANDOM** program, simply enter the number of subjects n followed by the number k that you wish to choose.

On the TI-83, the program displays the random choices and also stores the values into list **L1**.

On the TI-86, the program displays the random choices and also stores the values into list **xStat**.

On the TI-89, the program stores the random choices in the Data/Matrix Editor. Simply press **APPS**, then press **6**, then press **1** to see the random choices under column **c1**.

If you wish to permute the entire set of n subjects, for instance in order to assign them randomly into blocks, then simply choose all n subjects when executing the program.

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