Cyfrifiadur
Trosi gwerth crai i sgôr z a darganfod ei gyfraniad.
Diweddaru canlyniadau wrth i chi deipio.
Am y cyfrifiadur hwn
you want to compare a standard score to a normal distribution, you can use the standard-normal cumulative distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal cumulative distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal cumulative distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal cumulative distribution. The standard-normal cumulative distribution is aWorked example:The standard score is a standard score that is based on the standard-normal cumulative distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal cumulative distribution. The standard-normal cumulative distribution is a standard distribution that is based on the standard-normal cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-normal cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-normal cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-standard cumulative distribution.Worked example:The standard score is a standard score that is based on the standard-Work
Cwestiynau a ofynnir yn aml
Beth mae sgôr z o 2 yn ei olygu?
Mae sgôr z o 2 yn golygu bod y gwerth yn ddau ddirwyn safonol uwchben y canolrif. O dan dosraniad arferol mae 97. 7% o werthoedd yn disgyn islaw hyn, felly mae' n werth uchel, eithaf eithafol.
A all sgôr z fod yn negyddol?
Ie. Mae sgôr z negyddol yn golygu'n syml bod y gwerth islaw'r canolrif. Sgôr z o -1.5, er enghraifft, yw un gwyriad safonol a hanner islaw'r canolrif.
Sut ydw i'n cyfrifo sgôr z?
Tynnwch y canran o' ch gwerth a rhannwch gan y gwyriad safonol: z = (x − μ) / σ. Am x = 85, μ = 70 a σ = 10, y sgôr z yw (85 − 70) ÷ 10 = 1. 5.
Sut mae sgôr z yn perthyn i gyfraniad?
Mae'r sgôr-z yn cael ei drosi i gyfraniad trwy'r dosbarthiad crynodiadol safonol-normal, sy'n rhoi'r gyfraniad o werthoedd islaw iddo. Sgôr-z o 0 yw'r cyfraniad 50fed, +1 yw'r 84fed a -1 yw'r 16fed.
Beth sy'n cael ei ystyried yn sgôr z uchel neu annisgwyl?
Yn ôl rheol llygad-dyst, mae sgôr z uwchlaw ±2 yn annisgwyl ac uwchlaw ±3 yn anodd, gan fod tua 95% o ddosbarthiad normal o fewn dau ddirwyn safonol o'r canolrif a 99.7% o fewn tri.
A oes angen dosraniad arferol arnaf i ddefnyddio sgôr z?
Gallwch safonoli unrhyw werth gyda'r fformiwla z waeth beth yw'r ffurf, ond mae'r percentil a'r tebygolrwyddau ddeunydd yn cymryd bod y data yn dilyn dosraniad arferol. Am ddata annormal iawn, dim ond cyfartaledd yw'r tebygolrwyddau hyn.
API - defnyddio'r cyfrifiannell hwn o'r cod
Galw'r cyfrifiannell hwn fel diwedd-bwynt JSON rhad ac am ddim - nid oes angen allwedd. Anfonwch y gwerthoedd maes isod fel paramedrau ymholiad neu JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Darllen y dogfennaeth API lawn →
Diwedd
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);Mae'r canlyniadau yn amcangyfrifon ar gyfer cyfarwyddyd cyffredinol yn unig, nid cyngor ariannol, meddygol na thrafodion treth.