 In an experiment a person may be chosen at random, and one random variable may be the person's height.Mathematically, the random variable is interpreted as a function which maps the person to the person's height.Associated with the random variable is a probability distribution that allows the computation of the probability that the height is in any subset of possible values, such as the probability that the height is between 180 and 190 cm, or the probability that the height is either less than 150 or more than 200 cm.