discrete random variable

A discrete random variable is a type of variable in probability that can take on only specific, separate values, often counted as whole numbers. For example, the number of apples in a basket or the roll of a die are discrete because they can only be certain fixed outcomes, like 1, 2, or 3. Unlike continuous variables, which can take any value within a range, discrete variables jump from one value to the next without intermediate options. They help us model situations where outcomes are countable and distinct.