Cov txheej txheem:
Video: Cov piv txwv ntawm kev txheeb cais yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Statistical inference yog cov txheej txheem ntawm kev siv cov ntaub ntawv tsom xam los txiav cov khoom ntawm qhov kev faib tawm ntawm qhov tshwm sim. Inferential txheeb cais tsom xam infers cov khoom ntawm cov pejxeem, rau piv txwv los ntawm kev sim hypotheses thiab muab kev kwv yees.
Xav txog qhov no, dab tsi yog ob hom kev txheeb cais?
Muaj ob hom kev txheeb cais:
- Kev ntsuam xyuas hypothesis.
- Kev ntseeg siab ntawm kev kwv yees.
statistical inference yog dab tsi thiab vim li cas nws tseem ceeb? Statistical inference yog tseem ceeb txhawm rau txheeb xyuas cov ntaub ntawv kom raug. Qhov tseeb, kev txheeb xyuas cov ntaub ntawv tsim nyog yog tsim nyog los txhais cov txiaj ntsig kev tshawb fawb thiab kos cov lus xaus kom tsim nyog.
Hais txog qhov no, peb hom kev txheeb cais yog dab tsi?
Cov qauv no yog:
- Point kwv yees.
- Kev kwv yees ncua sij hawm.
- Kev xeem Hypothesis.
Lub hom phiaj ntawm kev kawm statistical inference yog dab tsi?
Nco qab, a statistical inference aims ntawm kev kawm yam ntxwv ntawm cov pej xeem los ntawm ib tug qauv; cov yam ntxwv ntawm cov pej xeem yog cov tsis muaj thiab cov qauv piv txwv yog txheeb cais . A txheeb cais qauv yog ib tug sawv cev ntawm ib tug complex phenomena uas generated cov ntaub ntawv.
Pom zoo:
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Dab tsi yog lub tswv yim los tswj cov kev txwv ntawm kev nkag mus ntawm cov peev txheej thaum ntau cov xov raug tua hauv Redis?
xauv Khaws qhov no hauv kev txiav txim siab, Redis ua li cas nrog kev sib raug zoo? Ib qho kev pabcuam ib leeg tuaj yeem muab tau sib npaug ntawm I / O qib los ntawm kev siv I / O (de) multiplexing mechanism thiab lub voj xwm txheej (uas yog dab tsi Redis ua ).
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Terminology Siv hauv Statistics Plaub nqe lus loj hauv kev txheeb cais yog pej xeem, qauv, ntsuas, thiab kev txheeb cais: Cov ntaub ntawv txheeb cais yog ib qho txiaj ntsig koj tau txais thaum koj txheeb xyuas cov ntaub ntawv - piv txwv li tus qauv txhais tau tias, qhov nruab nrab, tus qauv sib txawv, kev sib raug zoo, kab rov qab. , cov npoo ntawm qhov yuam kev, thiab kev xeem statistic