divinator
Relatively simple library bringing multiple outlier/anomaly detection algorithms together in one place.
math-z-score
Small module to calculate the standard score or the z-score
grade-math
A bundle of commonly used math functions for grading applications, including Standard Deviation, Normal Y, Mean, and Z-Score.
z-score-proportion
From mean, deviation, a upper (and lower) limit find the proportion (or percentage) of standard distribution