Qhov twg yog qhov sib txawv ntawm cov ntaub ntawv no?

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Qhov twg yog qhov sib txawv ntawm cov ntaub ntawv no?
Qhov twg yog qhov sib txawv ntawm cov ntaub ntawv no?

Video: Qhov twg yog qhov sib txawv ntawm cov ntaub ntawv no?

Video: Qhov twg yog qhov sib txawv ntawm cov ntaub ntawv no?
Video: Saw Lauj - Hluas Nkauj Tiam Tshiab Tsi Ntshai F. A. Nkauj Hmoob Viet, nkauj tawm tshiab 2020 2024, Lub peb hlis ntuj
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The IQR piav qhia qhov nruab nrab 50% ntawm qhov tseem ceeb thaum xaj los ntawm qis tshaj mus rau siab tshaj. Txhawm rau nrhiav qhov sib txawv ntawm qhov sib txawv (IQR), thawj zaug pom qhov nruab nrab (tus nqi nruab nrab) ntawm qis thiab sab saud ib nrab ntawm cov ntaub ntawv. Cov nqi no yog quartile 1 (Q1) thiab quartile 3 (Q3). IQR yog qhov txawv ntawm Q3 thiab Q1.

Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv muab?

Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv ntawm qhov thib peb quartile thiab thawj quartile hauv cov ntaub ntawv teeb, muab nruab nrab 50%. Qhov sib txawv ntawm qhov sib txawv yog qhov ntsuas ntawm kev sib kis; Nws yog siv los tsim cov thawv ntawv, txiav txim siab ib txwm faib thiab ua ib txoj hauv kev los txiav txim siab outliers.

Dab tsi yog qhov sib txawv ntawm cov qauv no?

Muaj 5 qhov tseem ceeb hauv qab qhov nruab nrab (qis ib nrab), tus nqi nruab nrab yog 64 uas yog thawj quartile. Muaj 5 qhov tseem ceeb tshaj qhov nruab nrab (sab sauv ib nrab), tus nqi nruab nrab yog 77 uas yog qhov thib peb quartile. Lub interquartile ntau yog 77 - 64=13; qhov interquartile ntau yog qhov ntau ntawm nruab nrab 50% ntawm cov ntaub ntawv.

Dab tsi yog qhov sib npaug ntawm qhov sib npaug?

Hauv kev txheeb cais, qhov sib txawv ntawm qhov sib txawv (IQR), tseem hu ua midspread, nruab nrab 50%, lossis H-spread, yog ib qho kev ntsuas ntawm kev faib tawm, sib npaug rau qhov sib txawv ntawm 75th thiab 25th feem pua, lossis nruab nrab ntawm sab sauv thiab sab qis, IQR=Q 3 − Q1.

Koj ua li cas sib npaug ntawm Excel?

The IQR yog ib qho kev ntsuas ntawm qhov nruab nrab dispersion ntawm cov ntaub ntawv, qhov sib txawv ntawm Q1 thiab Q3. Txhawm rau xam IQR hauv Microsoft Excel, siv qhov=QUARTILE muaj nuj nqi los xam Q1 thiab Q3, thiab thaum kawg pom qhov sib txawv ntawm ob tus nqi no.

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