Video: Qhov ratio hauv kev txheeb cais yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv Cov ntaub ntawv: txhais. Piv txwv Cov ntaub ntawv txhais tau tias yog cov ntaub ntawv ntau, muaj cov khoom zoo ib yam li cov ntaub ntawv luv luv, nrog qhov sib npaug thiab meej piv nruab nrab ntawm txhua cov ntaub ntawv thiab qhov tseeb "zero" yog ib qho kev kho raws li qhov chaw ntawm keeb kwm.
Yog li ntawd, piv txwv cov ntaub ntawv piv txwv yog dab tsi?
Zoo piv txwv piv txwv variables muaj xws li qhov siab, qhov hnyav, thiab ntev. Piv txwv scales muab ib tug nplua nuj ntawm possibilities thaum nws los txog rau statistical tsom xam. Cov kev hloov pauv no tuaj yeem muaj txiaj ntsig ntxiv, rho tawm, sib npaug, faib ( piv ).
Ib yam li ntawd, lub ntsiab lus txhais li cas hauv kev txheeb cais? Ordinal cov ntaub ntawv. Ordinal cov ntaub ntawv yog ib categorical, txheeb cais hom ntaub ntawv qhov twg cov variables muaj natural, order categories thiab qhov deb ntawm cov pawg yog tsis paub. Cov ntaub ntawv no muaj nyob rau ntawm ib qho kev cai scale, ib qho ntawm plaub theem ntawm kev ntsuas tau piav qhia los ntawm S. S. Stevens hauv xyoo 1946.
Tsis tas li ntawd, qhov ratio ntawm kev ntsuas yog dab tsi?
Piv txwv Scale: 4th Qib ntsuas ntsuas Scale yog txhais raws li qhov sib txawv ntsuas scale uas tsis tsuas yog ua rau qhov kev txiav txim ntawm qhov sib txawv tab sis kuj ua rau qhov sib txawv ntawm qhov sib txawv uas paub nrog rau cov ntaub ntawv ntawm tus nqi ntawm qhov tseeb xoom.
Lub sij hawm puas yog qhov sib txawv lossis qhov sib piv?
Lub sijhawm cov ntaub ntawv zoo li ordinal tsuas yog peb tuaj yeem hais tau ib ntus nruab nrab ntawm txhua tus nqi sib npaug sib npaug. Qhov piv txwv tshaj plaws yog qhov kub thiab txias hauv degrees Fahrenheit. Piv txwv data yog lub sijhawm cov ntaub ntawv nrog lub ntuj zero point. Piv txwv li, sij hawm yog piv vim 0 sij hawm muaj qab hau.
Pom zoo:
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