
probability density function
A probability density function (PDF) is a mathematical function used in statistics to describe the likelihood of a continuous random variable taking on a particular value. Unlike discrete probabilities, which can give a specific chance for certain outcomes, a PDF shows the relative probability of all possible outcomes within a range. The area under the curve of the PDF over a specific interval represents the probability of the variable falling within that interval. Essentially, the PDF helps us understand how values are distributed and how likely different outcomes are in situations involving continuous data.