Video: Nws txhais li cas kom muaj kev sib raug zoo tsis zoo?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A negative correlation txhais tau tias tias muaj inverse kev sib raug zoo nruab nrab ntawm ob qhov sib txawv - thaum ib qho hloov pauv tau txo qis, lwm qhov nce ntxiv. Lub vice versa yog a tsis zoo correlation ib yam nkaus thiab, nyob rau hauv uas ib tug nce mus nce los thiab lwm yam txo.
Hais txog qhov no, nws txhais li cas kom muaj qhov tsis zoo correlation coefficient?
A negative correlation yog kev sib raug zoo ntawm ob qhov sib txawv uas txav mus rau qhov sib txawv. Hauv lwm lo lus, thaum hloov pauv A nce, qhov sib txawv B txo qis. A coefficient ntawm -0.2 txhais tau tias tias rau txhua chav hloov pauv hauv qhov sib txawv B, qhov sib txawv A muaj kev txo qis, tab sis tsuas yog me ntsis, los ntawm 0.2.
Tsis tas li ntawd, puas muaj kev sib raug zoo tsis zoo? Thaum tus nqi r ze dua rau +1 lossis -1, nws qhia tias muaj yog ib tug muaj zog linear kev sib raug zoo ntawm ob qhov sib txawv. A kev sib raug zoo ntawm -0.97 yog ib qho kev sib raug zoo tsis zoo thaum a kev sib raug zoo ntawm 0.10 yuav yog qhov tsis muaj zog kev sib raug zoo.
Cov lus nug tseem yog, piv txwv li kev sib raug zoo thiab tsis zoo yog dab tsi?
Hauv ib kev sib raug zoo , ob qhov sib txawv txav mus rau tib qho kev taw qhia. Rau piv txwv , muaj a kev sib raug zoo nruab nrab ntawm kev haus luam yeeb thiab haus cawv. Raws li kev haus cawv ntau ntxiv, kev haus luam yeeb zoo li cas. Thaum ob qhov sib txawv muaj ib tsis zoo correlation , lawv muaj inverse kev sib raug zoo.
Puas yog kev sib raug zoo tsis zoo tseem ceeb?
Cov tsis zoo correlation txhais tau hais tias raws li ib qho ntawm cov kev hloov pauv nce, lwm yam nyhav zuj zus, thiab rov ua dua. Yog tias tsis zoo cov lej tau zoo dua qhov kev tshuaj ntsuam no yuav qhia tau tias a tseem ceeb zoo kev sib raug zoo.
Pom zoo:
Txoj kev sib raug zoo tsis muaj zog txhais li cas?
Yog tias r nyob ze rau xoom, nws txhais tau hais tias cov ntaub ntawv muaj kev sib raug zoo linear tsis muaj zog lossis tsis muaj kev sib raug zoo. Thaum r nyob ze rau xoom, nws muaj peev xwm hais tias cov ntaub ntawv muaj kev sib raug zoo curvilinear (raws li peb pom hauv qhov piv txwv no)
Nws txhais li cas thaum kev sib raug zoo ntawm kev sib raug zoo ua kev cuam tshuam?
Kev sib raug zoo ntawm ob tus neeg uas txhua tus neeg nyob ntawm thiab tau txais kev txhawb zog, txawm tias muaj txiaj ntsig lossis kev puas tsuaj, los ntawm lwm tus. ib qho kev sib cuam tshuam lossis kev sib raug zoo ntawm ob tus neeg, pab pawg, thiab lwm yam
Txoj kev sib raug zoo tsis zoo txhais li cas?
Ib qho kev sib raug zoo tsis zoo txhais tau hais tias muaj kev sib raug zoo ntawm ob qhov sib txawv - thaum ib qho sib txawv, qhov sib txawv nce. Lub vice versa yog qhov tsis zoo correlation ib yam nkaus, nyob rau hauv uas ib tug kuj nce mus nce los thiab lwm yam txo
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Koj yuav ua li cas thiaj paub tias kev sib raug zoo yog qhov zoo lossis tsis zoo?
Qhov zoo correlation coefficient txhais tau hais tias raws li tus nqi ntawm ib qho kev sib txawv nce, tus nqi ntawm lwm qhov sib txawv nce; raws li ib tug txo qhov qis dua. Qhov tsis zoo correlation coefficient qhia tau hais tias raws li ib qho kev sib txawv nce, qhov txo qis, thiab vice-versa