# probability density function (location) (PDF)

The Probability Density Function(PDF) is a graphical function that shows the probability of a certain event being above or below the graph. Such a graph represents only a threshold, for the probability statement.

A typical example is the Gaussian distribution curve. If one enters the events to be evaluated into the coordinate system with the distribution curve, then quite a few events lie above, others below the bell curve. The statement, which can be connected with it, refers to the probability with which an event lies above or below.

Such considerations play a role, for example, in the calculation and determination of field strengths and the planning of mobile radio transmitters, or also in the acoustic radiation of halls.