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x/simplestatistics/index.js>cumulativeStdNormalProbability

simple statistics for node & browser javascript
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function cumulativeStdNormalProbability
import { cumulativeStdNormalProbability } from "https://deno.land/x/simplestatistics@v7.7.5/index.js";

Cumulative Standard Normal Probability

Since probability tables cannot be printed for every normal distribution, as there are an infinite variety of normal distributions, it is common practice to convert a normal to a standard normal and then use the standard normal table to find probabilities.

You can use .5 + .5 * errorFunction(x / Math.sqrt(2)) to calculate the probability instead of looking it up in a table.