Tetthetsfunksjoner
Tetthetsfunksjoner, in Norwegian, translates to density functions in English. In the context of probability and statistics, a probability density function (PDF) describes the relative likelihood for a continuous random variable to take on a given value. The value of a PDF at any particular point is not the probability of the random variable taking on that exact value, which is zero for continuous variables. Instead, the integral of the PDF over a given interval represents the probability that the variable falls within that interval.
The PDF is always non-negative, meaning that f(x) >= 0 for all possible values of x. Furthermore, the
Different types of random variables are associated with different forms of density functions. For example, the