Video: Qhov txawv ntawm qhov xwm txheej thiab qhov chaw piv txwv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog qee zaum tsis meej pem nrog qauv qhov chaw ntawm kev sim, feem ntau yog los ntawm omega (Ω), tab sis yog txawv :thaum qauv qhov chaw ntawm qhov kev sim muaj tag nrho cov txiaj ntsig tau, qhov qhov chaw tshwm sim muaj tag nrho cov kev tshwm sim; tag nrho cov subsets qauv qhov chaw.
Kuj paub, qhov xwm txheej thiab qhov chaw piv txwv yog dab tsi?
Cov txheej txheem ntawm txhua qhov tshwm sim tau yog hu ua qauv qhov chaw ntawm qhov kev sim thiab feem ntau yog qhia los ntawm S. Ib qho subset E ntawm qhov qauv qhov chaw S npe an xwm txheej . Nov yog qee qhov piv txwv . Piv txwv 1 Tossing ib npib. E = {2, 4, 6} yog ib xwm txheej , uas tuaj yeem piav qhia hauv cov lus raws li "tus lej yog txawm".
Kuj Paub, koj txhais li cas qhov chaw coj mus kuaj? Summary: Lub qauv qhov chaw ntawm qhov kev sim yog cov txheej txheem ntawm txhua qhov ua tau rau qhov kev sim ntawd. Tej zaum koj yuav tau pom tias rau txhua qhov kev sim saum toj no, qhov sib npaug ntawm qhov tshwm sim ntawm txhua qhov tshwm sim yog 1. Qhov no tsis yog coincidence. Cov txiaj ntsig ntawm cov txiaj ntsig sib txawv hauv ib qauv qhov chaw yog 1.
Tsis tas li ntawd, qhov txawv ntawm qhov tshwm sim thiab qhov chaw piv txwv yog dab tsi?
Cov qauv qhov chaw yog {1, 2, 3, 4, 5, 6}, yeej yog ib daim ntawv teev cov txiaj ntsig tau koj tau txais los ntawm dov tuag. Cov qhov tshwm sim yog cov npe tau qhov tshwm sim , i.e. cov txiaj ntsig tau los ntawm kev sim.
Qhov chaw piv txwv hauv qhov tshwm sim yog dab tsi?
Hauv qhov tshwm sim txoj kev xav, cov qauv qhov chaw (tseem hu ua qauv piav qhia qhov chaw los yog muaj peev xwm qhov chaw ) ntawm ib qho kev sim lossis kev sim random yog cov txheej txheem ntawm txhua qhov ua tau los yog cov txiaj ntsig ntawm qhov kev sim ntawd. Ib subset ntawm cov qauv qhov chaw yog ib qho kev tshwm sim, denoted los ntawm E.
Pom zoo:
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