Kalkulator Z-Score

Ngarobah nilai kasar kana skor z sarta manggihan persentilna.

Z-Points —

Перцентил P(X ≤ x) —

P(X ≥ x) —

Lokasi —

Hasilne bakal dioptimalake nalika sampeyan ngetik.

Ngenai kalkulator iki

you want to compare a standard score to a standard distribution, you can use the standard-normal cumulative distribution. The standard-normal cumulative distribution is a distribution that is based on the standard-normal distribution. The standard-normal cumulative distribution is a distribution that is based on the standard-normal distribution. The standard-normal cumulative distribution is a distribution that is based on the standard-normal distribution. The standard-normal cumulative distribution is a distribution that is based on the standard-normal distribution. The standard-normal cumulative distribution is a distribution that is based on the standard-normal distribution.Worked example:Worked example

Takon-takon kang kerep diajukake

Apa tegese skor z 2?

A z-score of 2 hartina nilaina dua standar deviasi di luhur rata-rata. Di handapeun distribusi normal kira-kira 97.7% nilaina turun di handapeun éta, jadi éta cukup ekstrim, nilai luhur.

Bisakah skor z negatif?

Ya. Skor z négatip hartina nilaina handapeun rata-rata. Skor z -1.5, contona, nyaéta hiji setengah standar deviasi handapeun rata-rata.

Kepiye aku bisa ngitung skor z?

Ngaleungitkeun rata-rata tina nilai anjeun sareng dibagi ku standar deviasi: z = (x − μ) / σ. Kanggo x = 85, μ = 70 sareng σ = 10 skor z nyaéta (85 − 70) ÷ 10 = 1.5.

Apa tegese z-score sing ana hubungane karo persentil?

Skor z dikonversikeun ka persentil ngaliwatan distribusi kumulatif standar-normal, anu masihan proporsi nilai di handapeun éta. Skor z tina 0 nyaéta persentil ka-50, +1 nyaéta sakitar ka-84 sareng -1 sakitar ka-16.

Apa sing dianggep minangka skor z sing dhuwur utawa ora biasa?

Dina kasus anu paling umum, 95% tina populasi anu diuji didiagnosis sareng panyakit ieu, tapi 95% tina populasi anu diuji henteu ngagaduhan gejala, sareng 95% tina populasi anu diuji henteu ngagaduhan gejala.

Apa aku butuh distribusi normal kanggo nggunakake skor z?

Anjeun bisa ngastandarkan nilai mana wae kalawan formula z tanpa ngémutan bentukna, tapi probabilitas persentil jeung ekor alat ieu ngalaporkeun data nu nuturkeun distribusi normal. Pikeun data anu kuat non-normal, probabilitas éta ngan kira-kira.

API — gunakake kalkulator iki saka kode

Ngadongékeun kalkulator ieu minangka titik akhir JSON bébas — teu peryogi kunci. Kirim nilai medan di handapeun minangka parameter pitakonan atawa JSON. Waca dokumen lengkap API →

Tampilan

GET https://calculator.free/api/v1/z-score/

curl

curl "https://calculator.free/api/v1/z-score/?x=85&mean=70&sd=10"

JavaScript `fetch()`

const r = await fetch(
  "https://calculator.free/api/v1/z-score/?" + new URLSearchParams({
    "x": "85",
    "mean": "70",
    "sd": "10"
  }));
const data = await r.json();
console.log(data.results);

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

Ngenai kalkulator iki

Takon-takon kang kerep diajukake

Kalkulator

Tampilan

curl

JavaScript fetch()

JavaScript `fetch()`