Simple approximations of some statistical functions
Instrumentation and Methods for Astrophysics
2026-04-22 v1 Data Analysis, Statistics and Probability
Computation
Abstract
Possibilities are considered to simplify the computation of several statistical functions used to test statistical hypotheses when processing observations: the inverse normal distribution, the Student's t-distribution, and the criterion for rejecting outliers. For these three cases, simple approximation expressions are proposed for the quantiles of these statistical distributions, which are accurate enough for most practical applications.
Keywords
Cite
@article{arxiv.2604.17094,
title = {Simple approximations of some statistical functions},
author = {Zinovy Malkin},
journal= {arXiv preprint arXiv:2604.17094},
year = {2026}
}