Коэффициент вариации калькулятор

Variasi relatif diukur minangka rasio standar deviasi ka rata-rata.

Papisah nilai ku koma atawa kosong.
Variasi —
Variasi relatif —
Standar deviasi —
Rata-rata —
Jumlah —

Hasilne bakal dioptimalake nalika sampeyan ngetik.

Ngenai kalkulator iki

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Takon-takon kang kerep diajukake

Apa sing dadi koefisien varian dhuwur?

Teu aya cutoff universal, tapi CV handapeun kira-kira 15% sering dianggap low (konsisten) variasi sarta luhur 30% relatif luhur. Sabenerna ngahukum éta ngalawan nilai tipikal pikeun widang anjeun.

Kapan koefisien variasi ora bisa digunakake?

CV henteu dipercaya nalika rata-rata naék ka nol, sabab dibagi ku rata-rata anu alit bakal nyababkeun éta ledakan, sareng henteu hartosna pikeun data kalayan nilai negatif atanapi data anu henteu ngagaduhan titik nol anu leres, sapertos suhu dina Celsius.

Carane aku bisa ngitung koefisien variasi?

Bagi standar deviasi karo rata-rata lan gandakake karo 100 kanggo nyathet minangka persentase. Kanggo rata-rata 14 lan standar deviasi 3.16, CV iku 3.16 ÷ 14 × 100% ≈ 22.6%.

Mengapa menggunakan CV bukan standar deviasi?

Standar deviasi disambungkeun ka unit jeung skala data, jadi anjeun teu bisa ngabandingkeun spread harga dina dolar jeung spread tinggi dina sentimeter. Ngabagi ku rata-rata ngaleungitkeun unit, ngamungkinkeun anjeun ngabandingkeun konsistensi relatif ngaliwatan set data anu béda.

Apa koefisien variasi padha karo standar deviasi relatif?

Ya. Relative standard deviation (RSD) nyaéta ngaran séjén pikeun koefisien variasi dinyatakeun salaku persentase; dua istilah ieu bisa ditukar.

Apa aku kudu nggunakake sampel utawa standar deviasi populasi?

Gunakeun pilihan sampel nalika angka anjeun mangrupa subset anu ditarik ti kelompok anu langkung ageung, sareng pilihan populasi nalika aranjeunna sadaya kelompok. Pilihan ieu ngarobih standar deviasi sakedik sareng ku kituna CV, khususna pikeun kumpulan data alit.

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Tampilan

GET https://calculator.free/api/v1/coefficient-of-variation/

curl

curl "https://calculator.free/api/v1/coefficient-of-variation/?numbers=10, 12, 14, 16, 18&type=sample"

JavaScript fetch()

const r = await fetch(
  "https://calculator.free/api/v1/coefficient-of-variation/?" + new URLSearchParams({
    "numbers": "10, 12, 14, 16, 18",
    "type": "sample"
  }));
const data = await r.json();
console.log(data.results);

Hasilna nyaéta perkiraan pikeun pituduh umum, henteu saran finansial, médis atanapi pajak.