Standart
Mykdar ýa-da populýasiýa standart üýtgänini, variansi we ortasyny hasap et.
Netijeler ýazýan wagtyň täzelener.
Bu hasapçy hakda
sample is a sample of 1000 people, and the population is a population of 1000 people. The standard deviation is the difference between the average and the average of the sample. The standard deviation is the difference between the average and the average of the population. The standard deviation is the difference between the average and the average of the population. The standard deviation is the difference between the average and the average of the population. The standard deviation is the difference between the average and the average of the population. The standard deviation is the difference between the average and the average of the population.TheWork
Köp soralýan soraglar
Mysal we populýasiýa standart çeýnek arasy nädip tapawutlanýar?
Population formula divides the summed squared deviations by n; the sample formula divides by n − 1. The n − 1 (Bessel's correction) compensates for the fact that a sample tends to underestimate the true spread of the population it comes from.
Näme üçin çeperçekler
Ikinjilik her bir öwürmegi oňly eder, şonuň üçin olar ýitirilmez, we uly öwürmeleri has agyr agramly eder. Ikinjilik köki soňunda almak ölçegi maglumatlaryň aňsatlyk birlikleri bilen gaýtarýar.
Men standart öçümleri nädip el bilen hasap etmeli?
Ortaçany tap, ony her bir bahadan çykar, her bir bahanyň dörtlügini goş, soňra bir nusga ýa-da bir ilat üçin n bilen böl we netijäň dörtlügini al.
Saýlawlar
Bir universal "good" umumy
Standart öçüm süňňür ýa-da menjäli bolarmy?
Bu süňňür bolup biler, bu diňe her bir umumylyk deň bolsa we hiç bir umumylyk ýok bolsa bolup biler. Bu hiç wagt menfi bolup bilmez, sebäbi bu ortaça ikinjilik sanlaryň ikinjilik köki.
Näme üçin mysal hasaplamada azyndan iki baha gerek?
Mysal formula n - 1 bilen bölýär, şonuň üçin bir mysalyň bir bahasy süňňünden bölüner we belli edilmedik galýar. Mysalyň standart sapmagy diňe iki ýa-da has köp deňeşdirmek gözlegiňiz bolsa manyly.
API — bu hasapçyny koddan ullan
Bu hasapçyny azat JSON ahtar noktasy hökmünde çagyr - açar gerek däl. Aşakdaky meýdança mykdarlaryny soragyň parametrleri ýa-da JSON hökmünde iber. Eňlisçe senedleri oka →
_Soňky
GET https://calculator.free/api/v1/standard-deviation/curl
curl "https://calculator.free/api/v1/standard-deviation/?numbers=9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4&type=sample"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/standard-deviation/?" + new URLSearchParams({
"numbers": "9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4",
"type": "sample"
}));
const data = await r.json();
console.log(data.results);Netijeler diňe umumy ýardam üçin hasaplanypdyr, maliýe, lukmançylyk ýa-da salgyt maslahaty üçin däl.