Question

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 draws two slips from the box, one after the other, without replacement. The total number of possible outcomes for the experiment is

Answer 1

From the question it is given that, $1,2,3,4$ are the numbers written on the four slip. When two slips are drawn without replacement the first event has $4$ possible outcomes and the second event has $3$ possible outcomes because $1$ slip is already picked.
Therefore, the total number of possible outcomes $=(4\times 3)=12$