The numbers 1, 2,3 and 4 are written separately on four slips of paper. The slips are put in a box and mixed thoroughly. A person draw two slips from the box, one after the other, without replacement. Describe the sample space for the experiment.

Out of 4 slips two slips, are drawn without replacement. In the first draw it may be the slip numbered 1 and in the second draw it may be slip numbered 2. We denote this outcome of the experiment as (1, 2) and so on. Remember that we cannot have the outcomes like (1, 1) (2, 2), (3. 3) or (4,4) because this experiment is considered without replacement.

The sample space is given by:

S = {(1,2), (1,3), (1, 4), (2, 1), (2, 3), (2, 4), (3, 1), (3, 2), (3, 4), (4, 1), (4, 2), (4.3)}