Ixabiso le Standard Deviation
Bala umzekelo okanye uluhlu loqoqosho olusezantsi lokutshintsha, ukuhluka kunye nexesha eliphakathi.
Iinketho ze projekti
Malunga nale Calculator
example, if you have a sample of 1000 people, you can use the standard deviation calculator to calculate the population standard deviation. The standard deviation calculator is a simple and easy to use tool that can be used to calculate the standard deviation of a sample of 1000 people. The standard deviation calculator is a simple and easy to use tool that can be used to calculate the standard deviation of a sample of 1000 people. The standard deviation calculator is a simple and easy to use tool that can be used to calculate the standard deviation of a sample of 1000 people.Worked example: for 2, 4, 5, 5, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 95
Imibuzo ebuza rhoqo
Yintoni utshintsho phakathi kwesampuli kunye nokungalingani okuqhelekileyo koqoqosho?
Ifomula yobalo-manani ihlula iincopho ezithe nkqo ezidityanisiweyo nge n; ifomula yovavanyo ihlula nge n − 1. I n − 1 (ukulungisa kukaBessel) ihlawulisa isizathu sokuba uvavanyo luya kuqikelela ngaphantsi ukusasazeka kwenyaniso kobalo-manani oluvela kulo.
Kutheni ubeka i-square kwi-deviations?
Ukwenza i-square iyenza yonke i-deviation i positive ukuze ingarhoxisi ngaphandle, kwaye iphakamisa i-deviations enkulu ngakumbi. Ukuthabatha i-square root kwisiphelo ibuyisela uvavanyo kwiyunithi yokuqala ye data.
Ndibala njani utshintsho olusezantsi oluqhelekileyo ngesandla?
Fumana umbindi, shiya ixabiso ngalinye ukuze ufumane utshintsho, ujikeleziso lotshintsho ngalunye kwaye udibanisa, emva koko udibanise nge n - 1 kumzekelo okanye n kuqoqosho kwaye uthathe umngcambu wesikwere seziphumo.
Yintoni i-standard deviation elungileyo?
Akukho xabiso elipheleleyo "elilungileyo" - lixhomekeke ngokupheleleyo kubungakanani kunye nomxholo we data yakho. Ukusuka ngokuqhelekileyo kutshintshwa kubaluleke kuphela kufutshane nomda; unikezelo olufanayo oluncinci kwixabiso lendlu lunokuba lukhulu kwinqaku lovavanyo. Ixabiso elilinganayo lotshintsho libonisa njengeepesenti yomda wothelekiso.
Ingaba ukuguquka okuqhelekileyo ku zero okanye ku negalelo?
Inoku kwenziwa ibe yi zero, eyenza ukuba ixabiso lifana kwaye akukho kusasazeka. Ayikwazi ukuba yi negative, kuba yi square root ye average of squared numbers.
Kutheni ubalo lwesampulu lufuna amaxabiso amabini?
Umzekelo wefomula uhlula nge n - 1, ngoko ixabiso elinye liza kuphinda lihlukaniswe nge zero kwaye lishiye olungachazwanga. Umzekelo wendlela yokungalingani ithetha ukuba kuphela xa uneemboniselo ezimbini okanye ngaphezulu zokuthelekiswa.
API — sebenzisa le calculator ukusuka kwikhowudi
Nceda le kalkulator njengendawo esemva ye-JSON ekhululekileyo - akukho qhosha lifunekayo. Thumela amaxabiso endawo engezantsi njengeparameter yombuzo okanye i-JSON. Funda i-API epheleleyo →
Incopho yesiphelo
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);IiNtlanganiso zeNtlanganiso yeNtlanganiso