Kalkulator Variansi
Ngitung variansi sampel utawa populasi saka set data.
Hasil dioptimalake nalika sampeyan ngetik.
Ngendi kalkulator iki
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 standard deviation (sum of squared deviations) and the standard deviation.Worked example: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 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
Takon kang asring diajukake
Kepiye variansi ana gandhengane karo standar deviasi?
Standar deviasi iku akèh kuadrat saka variansi. Variansi iku ing unit kuadrat (kayata, dolar kuadrat), nalika standar deviasi ing unit asli, mula loro iku tansah nggambaraké spread sing padha.
Nalika aku nganggo n versus n − 1?
Dibagi déning n − 1 nalika data sampeyan ya iku sampel sing digunakake kanggo ngitung populasi sing luwih gedhé; dibagi déning n nalika data sampeyan nggambaraké kabèh populasi sing sampeyan peduli.
Apa tegesé varian ing unit kuadrat?
Akèhé, saben deviation dikwadratake sadurunge rata- rata, asil bakal ngangkut kuadrat saka unit asli - dollar kuadrat, sentimeter kuadrat lan liya- liya. Iki ndadèkaké variansi ora gampang kanggo diinterpretasikaké langsung, lan iku sebabé akèhé kuadrat, standar deviasi, dilaporaké bebarengan karo iku.
Bisaké variansi iku negatif?
Ora. Iki rata- rata angka kuadrat, mula iku tansah nol utawa positif. Variansi kang tepat nol tegesé saben nilai ing set iku identik.
Apa bedane antarané variansi lan standar deviasi?
Paramèter iki nggambaraké distribusi sing padha nanging ing skala sing beda: variansi iku deviation kuadrat rata-rata, lan standar deviasi iku akèh kuadrat, ing unit asli. Yen variansi iku 25, standar deviasi iku 5.
Carané kanggo ngitung varian ing analisis real.
Variansi punika dipun-ginakaken kanggé ngukur risiko ing finansial, daya sinyal ing teknik, lan F-tes ing ANOVA, ing pundi variansi antargrup dipunbandingaken kaliyan variansi ing salebetipun grup kanggé mutusaken manawi kelompok punika boten sami.
API — gunakake kalkulator iki saka kode
Panggenan kalkulator iki minangka titik pungkasan JSON gratis - ora ana kunci sing dibutuhaké. Kirimi nilai medan ing ngisor iki minangka parameter pitakonan utawa JSON. Waca dokumen API lengkap →
Titik pungkasan
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);Kajaba iku, ana uga sing ora bisa gawé gawéan, kaya ta dokter, insinyur, lan liya-liyané.