Video: Koj puas suav cov outliers hauv 5 lub ntsiab lus?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov tsib tus lej yog qhov tsawg kawg nkaus, thawj quartile (Q1) tus nqi, qhov nruab nrab, qhov thib peb quartile (Q3) tus nqi, thiab qhov siab tshaj plaws. Thawj qhov koj tej zaum yuav pom txog cov ntaub ntawv no yog lub tus lej 27. Qhov no txawv heev ntawm cov ntaub ntawv ntxiv. Nws yog ib outlier thiab yuav tsum tau muab tshem tawm.
Ntawm no, koj puas suav nrog outliers hauv ntau?
Ntau yam Nws yog ib qho tseem ceeb qhia tau hais tias kev nthuav tawm cov ntaub ntawv li cas, tab sis nws muaj qee qhov kev txwv loj. Qhov no yog vim qee zaum cov ntaub ntawv tuaj yeem muaj outliers uas yog dav tawm ntawm lwm cov ntaub ntawv cov ntsiab lus. Hauv cov xwm txheej no, cov ntau tej zaum yuav tsis muab qhov tseeb qhia txog kev sib kis ntawm cov ntaub ntawv.
dab tsi yog suav hais tias yog outlier? Ib outlier yog ib qho kev soj ntsuam uas nyob sab nraum tus qauv tag nrho ntawm kev faib khoom (Moore thiab McCabe 1999). Ib qho yooj yim txhais ntawm ib outlier yog ib qho taw tes uas ntog ntau tshaj 1.5 npaug ntawm qhov sib npaug ntawm qhov sib npaug ntawm qhov thib peb quartile lossis qis dua thawj quartile.
Hauv qhov no, 5 lub ntsiab lus suav nrog dab tsi?
Tsib- tus lej cov ntsiab lus A tsib - cov ntsiab lus ntawm tus lej tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev piav qhia kev txheeb xyuas lossis thaum lub sijhawm tshawb xyuas ua ntej ntawm cov ntaub ntawv loj. A Cov ntsiab lus suav nrog tsib qhov tseem ceeb: qhov tseem ceeb tshaj plaws nyob rau hauv cov ntaub ntawv teev (qhov siab tshaj plaws thiab qhov tsawg kawg nkaus), qhov qis thiab sab sauv quartiles, thiab qhov nruab nrab.
Txoj cai 1.5 IQR yog dab tsi?
Kev siv Interquartile Txoj cai Nrhiav Outliers Muab ntau qhov sib txawv ( IQR ) los ntawm 1.5 (ib qho tas mus li siv los txheeb xyuas qhov tsis txaus ntseeg). Ntxiv 1.5 x ( IQR ) mus rau lub quarter thib peb. Ib tus lej ntau dua qhov no yog qhov xav tau qhov tseeb. rho tawm 1.5 x ( IQR ) los ntawm thawj quartile. Ib tus lej tsawg dua qhov no yog qhov xav tias qhov tsis txaus ntseeg.
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