probability density function
Technical term in mathematics and statistics; often abbreviated as PDF.
The probability density function of the normal distribution is determined by the mean and variance.
Cumulative distribution function (CDF), which gives the probability that a random variable is less than or equal to a certain value, while the probability density function (PDF) describes the relative likelihood.
Compound of 確率 (probability), 密度 (density), and 関数 (function). A direct translation of the English term.