Cov txheej txheem:
Video: Yuav ua li cas koj pom qhov tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov yuav tshwm sim
- P(A) hais txog qhov qhov tshwm sim qhov xwm txheej A yuav tshwm sim.
- P(A|B) yog hais txog qhov xwm txheej qhov tshwm sim qhov xwm txheej A tshwm sim, muab qhov xwm txheej B tau tshwm sim.
- P(A') hais txog tus qhov tshwm sim ntawm qhov ntxiv ntawm qhov xwm txheej A.
- P (A ∩ B)
- P (A ∪ B)
- E(X) yog hais txog tus nqi xav tau ntawm qhov sib txawv ntawm X.
Hais txog qhov no, cov cim tshwm sim txhais li cas?
Lus txhais thiab Lus cim Qhov xwm txheej qhov tshwm sim ntawm qhov xwm txheej A, muab qhov xwm txheej B, yog qhia los ntawm cim P(A|B). Qhov sib ntxiv ntawm ib qho kev tshwm sim yog qhov xwm txheej tsis tshwm sim. Cov qhov tshwm sim qhov xwm txheej A yuav tsis tshwm sim yog qhia los ntawm P(A'). Cov qhov tshwm sim ntawm qhov kev sib tshuam ntawm Cov Txheej Txheem A thiab B yog qhia los ntawm P (A ∩ B).
Ib tug kuj yuav nug, dab tsi yog lub cim rau txhais tau tias? Cov ntawv sau rau "tus" txhais tau tias ntawm cov txheej txheem muaj nuj nqis suav nrog macron sau ntawv los yog. Tus nqi cia siab sau ntawv . yog qee zaum kuj siv. Cov txhais tau tias ntawm ib daim ntawv teev cov ntaub ntawv (piv txwv li, tus qauv txhais tau tias ) yog siv raws li Txhais tau tias [list]. Feem ntau, a txhais tau tias yog homogeneous muaj nuj nqi uas muaj cov cuab yeej uas a txhais tau tias ntawm ib pawg ntawm cov lej txaus siab.
Ntawm no, U txhais li cas hauv qhov tshwm sim?
U (a, b) uniform distribution. sib npaug qhov tshwm sim nyob rau hauv lub a, b.
∩ txhais li cas?
Kev txhais ntawm Kev sib tshuam ntawm Sets: Kev sib tshuam ntawm ob qhov muab teev yog qhov loj tshaj plaws uas muaj tag nrho cov ntsiab lus uas muaj rau ob qho tib si. Lub cim rau denoting kev sib tshuam ntawm sets ' ∩ '.
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev
Tus qauv yuav pab nrhiav qhov tshwm sim ntawm qhov kev tshwm sim sib xyaw li cas?
Lub ntsiab lus ntawm Qhov Muaj Peev Xwm Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej yog ib qho uas muaj ntau tshaj li qhov ua tau. Kev txiav txim siab qhov yuav tshwm sim ntawm qhov kev tshwm sim sib xyaw suav nrog kev nrhiav cov lej ntawm qhov tshwm sim ntawm tus kheej cov xwm txheej thiab, yog tias tsim nyog, tshem tawm qhov muaj feem sib tshooj
Yuav ua li cas koj pom qhov tshwm sim vector hauv physics?
Qhov tshwm sim yog qhov vector sum ntawm ob lossis ntau lub vectors. Nws yog qhov tshwm sim ntawm kev ntxiv ob lossis ntau lub vectors ua ke. Yog tias qhov hloov pauv vectors A, B, thiab C ntxiv ua ke, qhov tshwm sim yuav yog vector R. Raws li pom hauv daim duab, vector R tuaj yeem txiav txim siab los ntawm kev siv cov kos duab kos, ntsuas, vector ntxiv
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Yuav ua li cas koj pom qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug?
Txhawm rau xam qhov tshwm sim ntawm qhov tshwm sim tshwm sim tsawg kawg ib zaug, nws yuav yog qhov sib ntxiv ntawm qhov xwm txheej tsis tshwm sim. Qhov no txhais tau hais tias qhov tshwm sim ntawm qhov tshwm sim yeej tsis tshwm sim thiab qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug yuav sib npaug, lossis 100% txoj hauv kev