Vim li cas qhov ntsuas ntawm qhov chaw tseem ceeb?
Vim li cas qhov ntsuas ntawm qhov chaw tseem ceeb?

Video: Vim li cas qhov ntsuas ntawm qhov chaw tseem ceeb?

Video: Vim li cas qhov ntsuas ntawm qhov chaw tseem ceeb?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

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.

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