Peb tau muab rau hauv qhov kev faib tawm me ntsis asymmetrical, yog tias qhov nruab nrab thiab nruab nrab yog 36 thiab 34 raws. So, $\overline{x}=36, {{M}_{e}}=34$. Muab cov nqi, peb tau ${{M}_{0}}=3\times 34-2\times 36=102-72=30$. Yog li ntawd, hom empirical yog 30.
Yuav ua li cas rau qhov txhais tau tias thaum muaj kev faib tawm?
Nyob rau hauv ib qho skewed (tsis sib npaug, lopsided) faib, qhov txhais tau deb dua nyob rau hauv tus Tsov tus tw ntev dua li qhov nruab nrab. Yog hais tias tsis muaj skewness los yog kev faib yog symmetrical zoo li lub tswb-zoo li tus ib txwm nkhaus ces tus txhais=nruab nrab=hom.
Dab tsi asymmetrical faib zoo li cas?
Asymmetrical distribution tshwm sim thaum kev faib khoom vaj khoom tsev nqis peev rov qab nthuav tawm cov qauv tsis sib xws lossis skewed. Kev faib tawm asymmetrical yog qhov sib txawv ntawm qhov sib luag, uas yog thaum kev nqis peev rov qab los ua raws li tus qauv tsis tu ncua feem ntau pom raws li lub tswb nkhaus.
Kev faib tawm asymmetrical puas muaj qhov nruab nrab thiab nruab nrab?
Qhov nruab nrab thiab nruab nrab ntawm asymmetrical distributions tuaj yeem sib npaug.
Qhov txawv ntawm qhov kev faib tawm asymmetrical thiab asymmetrical yog dab tsi?
Kev faib tawm yog asymmetric yog tias nws tsis sib haum nrog xoom skewness; nyob rau hauv lwm yam lus, nws tsis skew. Kev faib tawm asymmetric yog sab laug-skewed lossis sab xis-skewed. … Ib qho kev faib tawm ntawm kev xa rov qab yog sib npaugfaib ib ncig ntawm lub ntsiab lus.
