Video: Koj piav qhia txog cov ntaub ntawv zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov chaw yog qhov nruab nrab thiab / lossis txhais tau tias ntawm qhov cov ntaub ntawv . Kev sib kis yog qhov ntau ntawm cov cov ntaub ntawv . Thiab, cov puab piav hom duab. Plaub txoj hauv kev piav txog lub cev yog seb nws yog symmetrical, pes tsawg peaks nws muaj, yog hais tias nws yog skewed rau sab laug los yog sab xis, thiab seb nws yog uniform.
Yog li ntawd, dab tsi yog 8 daim duab ntawm kev faib khoom?
Kev faib tawm cov duab ntawm kev faib tawm . Kev faib tawm kev faib tawm Raws li yog symmetrical, sab laug skewed, txoj cai skewed, uniform los yog bimodal.
Cov duab ntawm kev faib khoom txhais li cas? Cov puab ntawm a faib yog piav qhia los ntawm nws cov naj npawb ntawm cov ncov thiab los ntawm nws muaj symmetry, nws nyiam skew, los yog nws uniformity. ( Kev faib tawm uas yog skewed muaj ntau cov ntsiab lus npaj rau ntawm ib sab ntawm daim duab dua li ntawm lwm qhov.) PEAKS: Cov duab feem ntau pom cov peaks, lossis qhov siab tshaj plaws hauv zos.
Cov lus nug tseem yog, koj yuav piav qhia txog qhov nkhaus li cas?
Ib txoj kab ncaj nraim yuav qhia txog qhov tsis tu ncua ntawm cov tshuaj tiv thaiv, thaum a nkhaus qhia txog kev hloov pauv ntawm tus nqi (lossis nrawm) ntawm qhov kev tshwm sim dhau sijhawm. Yog ib txoj kab ncaj los yog nkhaus flattens rau hauv kab kab rov tav, uas qhia tias tsis muaj kev hloov pauv ntxiv ntawm tus nqi ntawm cov tshuaj tiv thaiv los ntawm qee qib.
Cov duab ntawm histogram txhais li cas?
Plaub txoj kev piav qhia puab yog seb nws yog symmetrical, pes tsawg peaks nws muaj, yog hais tias nws yog skewed rau sab laug los yog sab xis, thiab seb nws yog uniform. Ib daim duab nrog ib lub ncov yog hu ua unimodal. Ib lub ncov tshaj ntawm qhov chaw hu ua tswb-puab. Thiab, ib daim duab nrog ob lub ncov yog hu ua bimodal.
Pom zoo:
Koj piav qhia txog hluav taws xob zoo li cas rau cov menyuam kawm ntawv preschool?
Tus nqi zoo li qub tshwm sim thaum ob qhov chaw kov ib leeg thiab cov electrons txav ntawm ib qho khoom mus rau lwm qhov. Ib qho ntawm cov khoom yuav muaj tus nqi zoo thiab lwm qhov tsis zoo. Yog tias koj rub ib yam khoom sai sai, zoo li lub zais pa, lossis koj txhais ko taw ntawm cov ntaub pua plag, cov no yuav tsim cov nqi loj heev
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Cov yam ntxwv ntawm cov ntaub ntawv twg yog qhov ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis heev?
Variation: Ib qho kev ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis sib txawv. ? Kev faib tawm: Cov xwm txheej lossis cov duab ntawm kev sib kis ntawm cov ntaub ntawv hla ntau qhov tseem ceeb (xws li tswb-puab). ? Outliers: Cov qauv piv txwv uas nyob deb heev ntawm feem ntau ntawm lwm cov qauv nqi
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv
Koj piav qhia txog daim ntawv qhia topographic li cas?
Daim duab qhia chaw saum toj saud feem ntau yog daim ntawv qhia loj loj uas piav qhia txog lub cev thiab tus txiv neej tsim ntawm toj roob hauv pes; thiab muaj qhov txawv txav los ntawm qhov pom ntawm cov kab contour uas qhia txog kev nthuav dav hauv av nyem ntawm thaj av