Cov qhab nia xeem kev txawj ntse ua raws li qhov kwv yees li ib txwm faib, txhais tau tias cov neeg feem coob qhab nia ze ntawm nruab nrab ntawm kev faib cov qhab nia… Piv txwv li, ntawm IQ scale, kwv yees li ob feem peb. Ntawm tag nrho cov qhab nia poob ntawm IQs ntawm 85 thiab 115, thiab txog 95% ntawm cov qhab nia poob ntawm 70 thiab 130.
Koj ua li cas txiav txim siab tias qhov kev faib tawm yog kwv yees li qub?
Ib qho kev faib tawm ib txwm yog ib qho uas muaj txiaj ntsig sib npaug ntawm ob sab saum toj thiab hauv qab qhov nruab nrab. Cov pejxeem muaj ib txwm faib ua ntu zus yog qhov nruab nrab, hom, thiab nruab nrab txhua tus sib npaug Rau cov pejxeem ntawm 3, 4, 5, 5, 5, 6, 7, qhov nruab nrab, hom, thiab nruab nrab yog tag nrho 5.
kwv yees li ib txwm txhais li cas?
Ib qho kev faib tawm yog kwv yees li Ib txwm thaum qhov kev faib tawm ib txwm tuaj yeem siv los ua kwv yees kev faib tawmQhov no tshwm sim thaum muaj pes tsawg tus qauv lossis cov khoom tsim kev faib khoom loj hlob; Piv txwv li, yog tias koj muaj 100 npib tos qhov tshwm sim Binomial faib yog, rau feem ntau lub hom phiaj, kwv yees li ib txwm.
Dab tsi yog 3 tus yam ntxwv ntawm kwv yees li ib txwm faib nkhaus?
Cov yam ntxwv ntawm Kev faib tawm ib txwm
Kev faib tawm ib txwm yog sib luag, tsis sib xws, thiab asymptotic, thiab qhov nruab nrab, nruab nrab, thiab hom sib npaugIb txwm faib tau zoo kawg nkaus symmetrical nyob ib ncig ntawm nws qhov chaw. Ntawd yog, sab xis ntawm qhov chaw yog daim iav duab ntawm sab laug.
Dab tsi ua rau cov ntaub ntawv kwv yees li qub?
Cov ntaub ntawv muaj qhov kwv yees li ib txwm faib muaj qhov txawv txav, raws li tau hais los ntawm cov cai hauv qab no: μ±σ suav nrog kwv yees li 68% ntawm cov kev soj ntsuam μ±2⋅σ suav nrog kwv yees li 95% ntawm kev soj ntsuam μ±3⋅σ suav nrog yuav luag txhuantawm kev soj ntsuam (99.7% kom meej dua)
