Xov xwm thiab SocietyKab lis kev cai

Tshaj dab tsi. lub ntsiab lus ntawm

Cov tsab xov xwm no qhia txog lub luag hauj lwm ntawm statistics raws li ib tug science. Cov kev xav ntawm kurtosis thiab nws siv nyob rau hauv science.

Txheeb cais. Cov yooj yim tswvyim

Txheeb cais - ib tug derivative ntawm qhov yooj yim xaam science. Cov khoom no yog hais txog ib tug xov tooj ntawm cov kev sciences, uas yog aimed ntawm kev tsim me nyuam kawm ntawv 'paintings outlook thiab competent tsom xam ntawm cov txheej xwm.

Txheeb cais kev tshawb fawb ntau yam dab thiab cov txheej xwm nyob rau hauv lub neej ntawm cov neeg, nws ua rau lawv sawv tawm qauv thiab yog tag nrho cov nyob rau hauv daim ntawv ntawm luv luv statistical ntaub ntawv. Qhov no science yog kev pab tau thiab yuav tsum tau tas mus li txoj kev txhim kho. Tshaj - yog dab tsi? Qhov no yog ib tug yooj yim lub tswvyim nyob rau hauv graphical statistics, uas yuav pab tau txiav txim lub correctness ntawm advanced calculus. Lub tshaj yuav tsum tsis txhob muaj ib tug muaj zog sib txawv.

Txheeb cais tso cai rau koj kom tau raws li cov neeg ua tau li txhim khu kev qha cov ntaub ntawv txog ib tug tshwm sim, cov txheej xwm thiab thiaj li nyob. Kev txiav txim ntawm lub zog ntawm lub neej yam tseem ceeb ntawm lub caij txom nyem, stagnation los yog kev loj hlob - uas yog raws nraim li cas no science thiab koom.

Nyob rau hauv hnub no lub ntiaj teb no ntawm statistics nws yog ib tug ntawm lub ntsiab qhov chaw nyob rau hauv lub scientific arena. Cia saib lub tswvyim ntawm "tshaj". Yuav ua li cas yog lub ntsiab ntawm lub statistical thiab saib xyuas? Qhov twg cov tswv yim yog siv? Tag nrho cov no, saib tom qab nyob rau hauv no tsab xov xwm.

Yuav ua li cas yog ib tug ntau heev nyob rau hauv lub txheeb cais?

Tshaj - ib tug statistical tswvyim, uas nruab nrab yog cov sharpness ntawm txhua ncov nyob rau hauv daim ntawv faib rau. Muaj yog ib tug tshwj xeeb mis rau nws leej xam.

Lub expectation hais tias rau ib tug ntau yam tis txheeb cais kurtosis yuav tsum sib npaug zos rau qhov zoo xov tooj. Cia sij hawm no txhais tau tias ib tug tej yam txawv los ntawm cov cai thiab ntxiv txawv txav kev loj hlob los yog hauj lwm ntawm lub statistical system.

Ntev li qhia ntawm tshaj nyob rau statistical teeb yuav tham txog qhov tsis ncaj ncees coj ntawm txoj kev tshawb los yog qhov yuam kev nyob rau hauv lub raw cov ntaub ntawv teeb. Xws li ib tug lub tswv yim yog scalar nyob rau hauv cov xwm, uas txhais tau tias thaum ib tug zaum kawg rendering yuav tsum tau txais ib tug xov tooj uas tsis muaj cov tsiaj ntawv los yog koom haum pab zog. Hais tias yog dab tsi kurtosis.

Yuav ua li cas yog lub yam thiab asymmetric faib

Lub tshaj, uas muaj feem xyuam rau faib rau cov yam hom yog pes tsawg. Nws yog ua tau kom pom siv lub sij hawm. Asymmetric teeb qhia tau hais tias lub yav tom ntej pes tsawg tus naj npawb. Nws yog hais txog mus rau lub dhau heev lawm.

Yuav ua li cas yog lub sharpness ntawm lub ncov? Lub sij hawm, uas muaj ntse peaks, qhia hais tias tus nqi ntawm ntau heev - qhov no tus xov tooj yog tsawg tshaj li zero. Heev feem ntau muaj tej yam teeb meem nyob qhov twg no xav tsis tau hais ib zaug xwb tus nqi. Nyob rau hauv cov ntaub ntawv no, nws yog ze rau qhov rho tawm los yog ntxiv rau infinity.

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