A ib txwm faib (tws nkhaus) nthuav tawm zero skewness. Cov neeg lag luam sau tseg txoj cai-skewness thaum txiav txim qhov xa rov qab vim tias nws, zoo li kurtosis ntau dhau, zoo dua sawv cev rau qhov kawg ntawm cov ntaub ntawv teeb tsa tsis yog tsom rau qhov nruab nrab nkaus xwb.
Dab tsi yog qhov skewness ntawm ib txwm nkhaus?
Qhov skewness rau ib txwm faib yog zero, thiab txhua cov ntaub ntawv sib luag yuav tsum muaj qhov skewness zero. Cov txiaj ntsig tsis zoo rau qhov skewness qhia cov ntaub ntawv uas skewed sab laug thiab qhov txiaj ntsig zoo rau qhov skewness qhia cov ntaub ntawv uas skewed txoj cai.
Vim li cas qhov skewness ntawm ib txwm nkhaus yog 0?
Yog skewness yog qhov zoo, cov ntaub ntawv yog zoo skewed los yog skewed txoj cai, txhais tau hais tias txoj cai tus Tsov tus tw ntawm lub faib yog ntev dua sab laug. … Yog hais tias skewness=0, cov ntaub ntawv zoo kawg nkaus symmetrical.
Tus qauv zoo li cas hauv lub tswb nkhaus?
Ib qho kev faib tawm ib txwm muaj lub tswb-puab nkhaus thiab yog symmetrical ncig nws qhov chaw, yog li sab xis ntawm qhov chaw yog daim iav duab ntawm sab laug. Feem ntau ntawm cov ntaub ntawv txuas mus ntxiv nyob rau hauv ib qho kev faib tawm ib txwm ua pawg nyob ib ncig ntawm qhov nruab nrab, thiab qhov ntxiv tus nqi yog los ntawm qhov txhais tau tias, qhov tsawg dua yuav tshwm sim.
Vim li cas ib qho nkhaus yog tswb zoo li?
Qhov kev faib tawm ib txwm yog qhov kev faib tawm txuas ntxiv uas yog sib luag ntawm ob sab ntawm qhov nruab nrab, yog li sab xis ntawm qhov chaw yog daim iav duab ntawm sab laug. … Qhov kev faib tawm ib txwm muaj feem ntau hu ua lub tswb nkhaus vim daim duab ntawm nws qhov tshwm sim qhov ntom ntom zoo li lub tswb
