Q1. A fair dice is thrown once. The random variable X is related to the number N thrown on the dice as follows. If N is even, then X is half N ; otherwise X is double N . Tabulate the probability distribution of X .

Q2. Two fair dice are thrown simultaneously. The random variable H is the highest common

factor of the two scores. Tabulate the probability distribution of H . combining together all

the possible ways of obtaining the same value.