Question: a. The probability function of a discrete random variable X is given by: mmmmm i. The probability that X is less than 3. (1 mark)

a. The probability function of a discrete random variable X is given by: mmmmm i. The probability that X is less than 3. (1 mark) ii. Find the mean and variance of X. (3 marks) 13. The probability density function of a random variable X is given below

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