Koobta kala duwanaanshaha Calculator
Miisaanka isbeddelka la xiriira sida qiyaasta ka leexashada caadiga ah in ay ka dhigan tahay.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
The coefficient of variation (CV) expresses the standard deviation as a percentage of the mean, giving a unit-free measure of relative spread. Because it is scale-independent, the CV lets you compare the variability of data sets that have very different means or units — you can put the consistency of a set of body weights next to a set of exam scores even though they share no units.
The formula is simply CV = (standard deviation ÷ mean) × 100%. This calculator uses the sample or population standard deviation you choose, divides it by the mean of the data and flags whether the relative variability is low, moderate or high (below about 15%, between 15% and 30%, or above 30% here).
Worked example: for 10, 12, 14, 16, 18 the mean is 14 and the sample standard deviation is about 3.16, so the coefficient of variation is 3.16 ÷ 14 × 100% ≈ 22.6% — moderate relative variability. The CV is widely used in finance to compare investment risk per unit of return and in the lab to judge the precision of repeated measurements.
Su'aalaha badanaa la isweydiiyo
Waa maxay coefficient sare ee isbeddelka?
Ma jiro wax cutoff guud, laakiin CV hoos ku saabsan 15% waa in badanaa loo tixgeliyaa hoos (dhaqdhaqaaqa) kala duwanaansho iyo kor 30% si aad u sarreeya. Mar kasta u xukumaan ka dhanka ah qiimaha caadiga ah ee aad goobta.
Marka waa coefficient ee isbeddelka aan waxtar lahayn?
CV waa aan la aamini karin marka dhexdhexaad ah waa zero ku dhow, sababtoo ah qaybinta by dhexdhexaad ah yar yar ka dhigaysa inay burburaan, iyo ma aha wax macno leh oo ku saabsan xogta la qiimaha xun ama xogta oo aan lahayn dhibco zero dhab ah, sida heerkulka in Celsius.
Sideen u xisaabin karaa coefficient ee kala duwan?
Qaybta ka mid ah ka noqoshada caadiga ah by dhexdhexaad ah iyo ku baddalaan 100 si ay u sheegaan sida boqolkiiba. Si ay u dhexeyso 14 iyo ka noqoshada caadiga ah ee 3.16, CV waa 3.16 ÷ 14 × 100% ≈ 22.6%.
Maxaa loo isticmaalaa CV ka bedelka ka leexashada caadiga ah?
The standard digriiga waa la xidhiidhay unugyada iyo heerka xogta, sidaas darteed ma aad si xaq ah u barbardhigi kartaa faafinta qiimaha dollar la faafinta ee dhererka sentimitir. kala qaybinta by dhexdhexaad ah ka saaraa unugyada, si aad u barbardhigi kartaa isku midka ku saabsan dhammaan noocyada kala duwan ee xogta.
Ma coefficient ee kala duwanaansho waa mid ka mid ah sida ka leexashada caadiga ah la xiriira?
Haa. Standard ka soo horjeeda la xiriira (RSD) waa magac kale oo loogu talagalay coefficient ee kala duwanaansho ku muujiyay sida boqolkiiba; labada ereyba waa isku bedeli karo.
Ma waxaan u isticmaali karaa tusaale ama dadka standard diidmada?
Ku isticmaal ikhtiyaarka tusaale marka lambaradaadu yihiin subset ka soo baxay koox weyn, iyo doorasho dadweynaha marka ay yihiin koox dhan. Doorashada ku beddeli doonaa ka leexashada caadiga ah si yar oo sidaas darteed CV, gaar ahaan set data yar.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba ma aha zero maqan. Akhri dhammaan API xuquuqda →
Xarafka
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);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.