A probability density function (PDF) describes the likelihood of different outcomes for a continuous random variable.

The problem considered here is the estimation of the probability density function f (x1, ⋯, xp) at a point z = (z1, ⋯, zp) where f is positive and continuous. An estimator is proposed and consistency ...

Laurent Cavalier, Efficient Estimation of a Density in a Problem of Tomography, The Annals of Statistics, Vol. 28, No. 2 (Apr., 2000), pp. 630-647 ...

Resistor noise is also Gaussian , a description of its amplitude distribution, a probability density function . It’s Gaussian because it’s created by the summation of a gazillion little random events.