The importance of the change-of-variables integration technique in deriving the PDFs of important probability distributions
Year: 2026
Type: preprint
Abstract: The purpose of this article is to explicitly describe how the integration technique known as the change of variables is used in graduate-level Probability and Statistics courses. Throughout the article, we employ this integration technique seven times across various examples and results. We demonstrate that four applications of this technique are required to derive the probability density function (PDF) of the Student's t-distribution.
Source: arXiv (Cornell University)
Author: Arpasi, Jorge P.
Institution: Universidade Federal do Pampa
Language: English
Subfield: Statistics and Probability
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7214636281