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Population and Sample Standard Deviation

Install and import#

bash
npm install fintech-algorithms
ts
import { populationAndSampleStandardDeviation } from "fintech-algorithms/financial-mathematics-statistics-and-data-foundations/dispersion-shape-and-robust-statistics/population-and-sample-standard-deviation";

Signature#

populationAndSampleStandardDeviation(input)

Worked example#

verified This is the worked example published in the article, replayed by the test suite on every run. The output cannot drift.

Input#

input
{
  "values": [1, 2, 2, 4, 9]
}

Call#

populationAndSampleStandardDeviation(input)

Returns#

object with 2 fields: populationStandardDeviation, sampleStandardDeviation

{
  "populationStandardDeviation": 2.870540018881465,
  "sampleStandardDeviation": 3.2093613071762426
}

Diagrams#

Population and Sample Standard Deviation — article hero
Population and Sample Standard Deviation — calculation ledger
Population and Sample Standard Deviation — concept anatomy
Population and Sample Standard Deviation — failure boundary
Population and Sample Standard Deviation — method map
Population and Sample Standard Deviation — scenario contrast

How it works#

This page states the contract — how to call it correctly. The article explains the concept: why it works, and where it breaks.

Read the article →

References#

The rest of the Dispersion, Shape, and Robust Statistics family#