Video: Vim li cas qhov ntsuas ntawm qhov chaw tseem ceeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws pab muab peb lub tswv yim ntawm qhov "feem ntau" cov lus teb, ib txwm, lossis cov lus sawv cev yuav yog. Qhov tseem ceeb, los ntawm qhov tau txais qhov nruab nrab, qhov koj tab tom ua tiag tiag yog xam qhov "nrab" ntawm ib pawg ntawm kev soj ntsuam.
Tsis tas li ntawd, qhov kev ntsuas ntawm kev hloov pauv yog dab tsi thiab vim li cas lawv tseem ceeb?
MEASURES NTAWM VARIABILITY. Ib qho tseem ceeb ntawm kev siv cov txheeb cais yog ntsuas qhov sib txawv los yog kev sib kis ntawm cov ntaub ntawv. Piv txwv li, ob qhov kev ntsuas ntawm qhov sib txawv yog tus qauv sib txawv thiab qhov ntau . Tus qauv sib txawv ntsuas qhov sib kis ntawm cov ntaub ntawv los ntawm cov txhais tau tias orthe nruab nrab qhab nia.
Tsis tas li ntawd, cov kev ntsuas ntawm qhov chaw puas ua rau kev txiav txim siab? Tsuas yog hom ua rau siab vim cov ntaub ntawv nominal. Tsuas yog qhov nruab nrab, nruab nrab, thiab hom ua kom paub vim cov ntaub ntawv yog tus lej. Tsuas yog qhov nruab nrab, nruab nrab, thiab nruab nrab ua kom paub vim cov ntaub ntawv nominal. Tag nrho cov ntsuas ntawm qhov chaw ua kom nkag siab vim cov ntaub ntawv yog tus lej.
Kuj nug, qhov ntsuas ntawm qhov chaw txhais li cas?
A ntsuas ntawm central tendency ( ntsuas qhov chaw ) yog tus nqi uas sim piav qhia txog cov ntaub ntawv los ntawm kev txheeb xyuas qhov chaw nruab nrab ntawm cov ntaub ntawv teeb tsa (raws li tus neeg sawv cev ntawm tus nqi "tus nqi" hauv cov txheej txheem). Peb yeej paub ntsuas ntawm central nyiam hu ua txhais tau tias , nruab nrab thiab hom.
Qhov kev ntsuas tsim nyog ntawm qhov chaw yog dab tsi?
Yog li, cov nruab nrab thiab qhov sib txawv ntawm qhov sib txawv yog qhov kev ntsuas tsim nyog tshaj plaws los piav txog qhov chaw nruab nrab thiab qhov sib txawv.
Pom zoo:
Vim li cas qhov loj ntawm qhov chaw tseem ceeb hauv TLC?
Tshaj-loj Spots: Pom qhov ntau thiab tsawg ntawm koj tus qauv yuav tsum tsis txhob loj dua 1-2 hli inch. Cov khoom me me yuav tsis loj dua lossis me dua li koj qhov chaw keeb kwm. Yog tias koj muaj qhov chaw loj dhau, qhov no tuaj yeem ua rau sib tshooj ntawm lwm cov khoom sib txuas nrog cov txiaj ntsig zoo sib xws (R_f) ntawm koj lub phaj TLC
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?
Cov duab tseem ceeb yog qhov tseem ceeb los qhia qhov tseeb ntawm koj cov lus teb. Qhov no yog qhov tseem ceeb hauv kev tshawb fawb thiab engineering vim tias tsis muaj cov cuab yeej ntsuas tuaj yeem ua qhov ntsuas nrog 100% precision. Siv cov nuj nqis tseem ceeb tso cai rau tus kws tshawb fawb paub tias cov lus teb meej npaum li cas, lossis qhov tsis paub meej npaum li cas
Vim li cas kev ntsuas thiab ntsuas qhov tseem ceeb hauv kev tshawb fawb txog kev lag luam?
Cov nplai tau siv ntau zaus hauv kev tshawb fawb kev lag luam vim tias lawv pab hloov cov ntaub ntawv zoo (xav, kev xav, kev xav) rau hauv cov ntaub ntawv ntau, cov lej uas tuaj yeem txheeb xyuas tau. Koj tsim ib qho kev ntsuas los ntawm kev muab cov khoom (yuav ua tau piav qhia) rau tus lej
Vim li cas qhov chaw saum npoo rau qhov sib piv ntawm qhov tseem ceeb?
Qhov chaw rau qhov ntim qhov piv yog qhov tseem ceeb vim tias, raws li lub hnub nyoog ntawm tes thiab tsim cov khoom tseem ceeb xws li cov proteins nws loj tuaj. Cell tau loj dua, yog li nws qhov ntim tau loj dua, tab sis hmoov tsis zoo li ntim, thaj chaw ntawm lub xov tooj tsis tau loj dua sai