13. The numbers and are written separatly on four slips of paper. The slips are put in a box and mixed thoroughly. A person draws two slips from the box, one after the other, without replacement. Describe the sample space for the experiment.
Given, two slips are drawn from the box, one after the other, without replacement.
Let 1, 2, 3, 4 denote the event that 1, 2, 3, 4 numbered slip is drawn respectively.
When two slips are drawn without replacement, the first event has 4 possible outcomes and the second event has 3 possible outcomes
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)}