Kalkulatè varyasyon
Kalkile varyasyon an nan yon echantiyon oswa popilasyon nan yon set done.
Rezilta yo mete ajou pandan w ap ekri.
Atik sa a
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, mean, range and sum of squared deviations. This calculator gives the average of the squared deviations from the mean and is the square of the standard deviation.To find it, take the mean, subtract it from every value, square each of those deviations, add them together and divide by n − 1 for a sample or by n for a whole population.To find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find itTo find
Kesyon ki poze souvan
Ki jan varyasyon an gen rapò ak deviation estanda?
Deviation estanda se ranje kare a nan varyans. Varians se nan unite kare (pou egzanp, dola kare), pandan ke deviation estanda se tounen nan unite orijinal, konsa de a toujou dekri menm depa.
Ki lè pou mwen itilize n kont n − 1?
Divize pa n − 1 lè done ou yo se yon echantiyon ki itilize pou estime yon popilasyon pi gwo; divize pa n lè done ou yo reprezante tout popilasyon an ou vle konnen.
Poukisa varyasyon an se nan unite kare?
Se paske chak deviation se kare anvan mwayèn, rezilta a pote kare a nan unite orijinal la - dola kare, santimèt kare ak sou sa. Sa fè varyasyon an difisil pou konprann dirèkteman, ki se poukisa li ranje kare li, deviation estanda, ki te rapòte ansanm ak li.
Èske varyasyon an ka negatif?
Non. Li se yon mwayèn de nimewo kare, se konsa li se toujou zèro oswa pozitif. Yon varyasyon egzakteman zèro vle di chak valè nan konpilasyon an se menm bagay la.
Ki diferans ki genyen ant varyans ak deviation estanda?
Yo dekri menm dega a men sou eskalye diferan: varyans se deviation kare mwayèn, ak deviation estanda se li ranje kare, tounen nan unite orijinal. Si deviation se 25, deviation estanda se 5.
Ki jan varyasyon an itilize nan analiz reyèl?
Varians se sous risk nan finans, pouvwa siyal nan enjenieri ak F-tès la nan ANOVA, kote varyasyon ant gwoup yo konpare ak varyasyon anndan yo pou deside si gwoup la vle di reyèlman diferan.
API — itilize sa a calculateur soti nan kòd
Apèl sa a calculateur kòm yon gratis JSON pwent-de-fini - pa gen okenn kle ki nesesè. Envoye valè jaden anba a kòm paramèt kesyonè oswa JSON. Li dokiman API a an antye →
Endpoint
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);Rezilta yo se estimasyon pou kòmandman jeneral sèlman, pa finansye, medikal oswa konsèy taks.