Dab tsi yog qhov tsis paub tseeb hauv kev txheeb cais?
Dab tsi yog qhov tsis paub tseeb hauv kev txheeb cais?

Video: Dab tsi yog qhov tsis paub tseeb hauv kev txheeb cais?

Video: Dab tsi yog qhov tsis paub tseeb hauv kev txheeb cais?
Video: Koj saib kuv tsis muaj nqis - Nkauj tawm tshiab 2021-22 2024, Kaum ib hlis
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Tsis paub tseeb hauv kev txheeb cais yog ntsuas los ntawm tus nqi ntawm qhov yuam kev hauv qhov kwv yees ntawm qhov nruab nrab lossis qhov nruab nrab ntawm cov pejxeem.

Ntxiv mus, dab tsi yog qhov tsis paub tseeb ntawm kev txheeb cais?

Random los yog statistical uncertainties tshwm sim los ntawm random fluctuations nyob rau hauv ib qho kev ntsuas. Cov kev hloov pauv tsis zoo no tuaj yeem tshwm sim hauv cov cuab yeej ntsuas. Piv txwv li, cov suab nrov hauv hluav taws xob thiab huab cua tam sim no ua rau muaj kev hloov pauv sai tab sis me me hauv kev nyeem cov lus tsa suab.

Ib sab saum toj no, dab tsi yog qhov tsis paub tseeb hauv Qhov Muaj Peev Xwm? Tsis paub meej . Qhov tsis muaj qhov tseeb, lub xeev ntawm kev paub tsawg uas nws tsis tuaj yeem piav qhia meej txog lub xeev uas twb muaj lawm, qhov tshwm sim yav tom ntej, lossis ntau tshaj li qhov ua tau. Hauv kev txheeb cais thiab kev lag luam, kev txiav txim thib ob tsis paub meej yog sawv cev rau hauv qhov tshwm sim density functions over (thawj-order) Qhov yuav tshwm sim ..

Kev sib raug zoo, dab tsi yog qhov tsis paub tseeb?

Zoo tshaj Kev kwv yees ± Tsis paub meej Piv txwv li: qhov ntsuas ntawm 5.07 g ± 0.02 g txhais tau hais tias tus neeg sim ua kom ntseeg tau tias tus nqi tiag tiag ntawm qhov ntsuas yog nyob ntawm 5.05 g thiab 5.09 g.

Ib qho piv txwv ntawm kev tsis paub meej yog dab tsi?

npe. Tsis paub meej txhais tau tias yog tsis ntseeg. Thaum koj xav tias koj tsis paub meej tias koj xav ua haujlwm tshiab lossis tsis yog, qhov no yog ib qho piv txwv ntawm kev tsis paub meej . Thaum kev lag luam tsis zoo thiab ua rau txhua tus txhawj xeeb txog qhov yuav tshwm sim tom ntej, qhov no yog ib qho piv txwv ntawm ib tsis paub meej.

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