Video: Yuav ua li cas koj xam qhov zaus ntawm zaus thiab feem pua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua li no, faib cov zaus los ntawm tag nrho cov txiaj ntsig thiab muab faib los ntawm 100. Nyob rau hauv rooj plaub no, tus zaus ntawm thawj kab yog 1 thiab tag nrho cov txiaj ntsig yog 10. Cov feem pua ces yog 10.0. Cov kab kawg yog cumulative feem pua.
Ntxiv mus, koj ua li cas thiaj nrhiav tau qhov feem pua hauv kev faib ntau zaus?
Feem pua yog xam los ntawm kev noj cov zaus nyob rau hauv qeb muab faib los ntawm tag nrho cov neeg koom thiab muab 100%. Yuav xam cov feem pua ntawm cov txiv neej hauv Table 3, coj tus zaus rau cov txiv neej (80) muab faib los ntawm tag nrho cov lej hauv cov qauv (200). Tom qab ntawd coj tus lej no zaug 100%, ua rau 40%.
Tsis tas li ntawd, tus qauv los xam cov feem pua yog dab tsi? 1. Yuav suav pes tsawg tus lej li cas. Siv tus qauv piv txwv: P% * X = Y
- Hloov qhov teeb meem mus rau ib qho kev sib npaug siv cov qauv feem pua: P% * X = Y.
- P yog 10%, X yog 150, yog li qhov sib npaug yog 10% * 150 = Y.
- Hloov 10% mus rau tus lej los ntawm kev tshem tawm feem pua kos npe thiab faib los ntawm 100: 10/100 = 0.10.
Tom qab ntawd, koj ua li cas suav zaus hauv kev txheeb cais?
Suav cov qhab nias los txiav txim qhov zaus ntawm txhua chav kawm. Tus txheeb ze zaus ntawm chav kawm ntawv yog qhov feem pua ntawm cov ntaub ntawv hauv chav kawm ntawd. Tus txheeb ze zaus tuaj yeem suav nrog cov mis fi = fn f i = f n, qhov twg f yog qhov tseeb zaus thiab n yog tus lej ntawm tag nrho zaus.
Qhov zaus thiab feem pua yog dab tsi?
A feem pua zaus kev faib tawm yog ib qho kev nthuav qhia cov ntaub ntawv uas qhia txog qhov feem pua ntawm kev soj ntsuam uas muaj nyob rau txhua qhov taw tes cov ntaub ntawv los yog pab pawg ntawm cov ntaub ntawv cov ntsiab lus. Cov feem pua zaus Ntawm txhua tus yuav yog 5%, 40%, 25%, 20%, thiab 10%, feem.
Pom zoo:
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