Definitions

This lesson covers the definitions for continuous distribution, discrete distribution, and the probability mass function.

A probability distribution can be continuous or discrete.

Continuous Probability Distribution

A random variable that is a continuous variable has a probability distribution called continuous probability distribution.

The probabilities of a continuous random variable are defined as the area under the curve of its probability distribution function. Hence, the probability of continuous random variable having a particular value is zero. Due, to this continuous probability distribution, cannot be expressed in a tabular form. An equation or formula is used to describe it instead.

This is what a continuous probability distribution looks like:

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