Varianzrechner
Berechent d' Varianz vun enger Probe oder Populatioun.
D'Resultater ginn aktualiséiert wéi se getippt ginn.
Iwwer dëse Rechner
standard deviation is the average of the squared deviations from the mean and is the square of the standard deviation. This calculator gives the sample variance (sum of squared deviations divided by n − 1) or the population variance (divided by n), along with the standard deviation, mean, range and sum of squared deviations. Variance is expressed in squared units, which is why it is usually easier to interpret. Variance is always non-negative and gives extra weight to values that lie far from the mean. The standard deviation is the average of the squared deviations from the mean and is the square of the standard deviation. This calculator gives the sample variance (sum of squared deviations divided by n − 1) or the population variance (divided by n), along with the standard deviation.ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example:ToWorked example
Häufig gestallt Froen
Wéi ass d'Variatioun mat der Standarddeviatioun verbonnen?
D' Standardabweichung ass d' Quadratwurzel vun der Varianz. D' Varianz ass an Quadrat- Eenheeten (z. B. Quadratdollar), während d' Standardabweichung an den ursprénglechen Eenheeten ass, sou datt se ëmmer déi selwecht Varianz beschreiwen.
Wéini gëtt d'N-1-Regioun als 1.
D'Zuel vun de Memberen ass net bekannt, mä et gëtt ugeholl, datt se tëscht 1 an 1000 leien, wat d'Zuel vun de Memberen an der Gemeng erkläert.
Wat ass d'Variatioun an de Quadrat-Eenheeten?
Well all Ofweichung virum Duerchschnëttswäert gekvadréiert gëtt, gëtt d'Resultat mat dem Quadrat vun der ursprénglecher Eenheet gemooss - Quadratdollar, Quadratzentimeter asw. Dat mécht d'Variance onbequem direkt ze interpretéieren, an dofir gëtt hir Quadratwurzel, d'Standardabweichung, nieft der Variance geschriwwen.
Wéi kann een dat negativ beaflossen?
Nee. Et ass e Mëttelwäert vu Quadratzuelen, also ass et ëmmer Null oder positiv. Eng Varianz vun genau Null heescht datt all Wäert am Set identisch ass.
Wat ass den Ënnerscheed tëscht Varianz an Standarddeviatioun?
D' Varianz ass d' Duerchschnëttswäert vun der Varianz, an d' Standardabweichung ass d' Quadratwurzel vun der Varianz. Wann d' Varianz 25 ass, ass d' Standardabweichung 5.
Wéi gëtt d'Variance an der Realanalyse benotzt?
D'Grupp ass an der Regel eng Grupp mat enger grousser Variatioun, an där d'Grupp mat der Variatioun vun der Grupp an der Grupp mat der Variatioun vun der Grupp verglach gëtt.
API — benotzt dëse Rechner aus Code
Dësen Rechner als e fräien JSON Endpunkt opruffen - keng Schlëssel erfuerderlech. D'Feldwäerter ënnendrënner als Ufroparameter oder JSON schécken. Liest d'vollstänneg API-Dokumentatioun →
Endpunkt
GET https://calculator.free/api/v1/variance/curl
curl "https://calculator.free/api/v1/variance/?numbers=12, 15, 17, 20, 22, 25&type=sample"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/variance/?" + new URLSearchParams({
"numbers": "12, 15, 17, 20, 22, 25",
"type": "sample"
}));
const data = await r.json();
console.log(data.results);D'Resultater sinn nëmmen als allgemeng Orientéierung, net als finanziell, medizinesch oder Steuerberodung.