Video: Dab tsi yog txhais los ntawm kev kwv yees lub sijhawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv kev txheeb cais, kev kwv yees yog siv cov ntaub ntawv piv txwv los xam ib lub sijhawm ntawm qhov ua tau (los yog tej zaum) qhov tseem ceeb ntawm qhov tsis paub txog cov pej xeem, piv rau qhov taw tes kev kwv yees , uas yog ib tus lej.
Tsis tas li ntawd, kev kwv yees luv luv nrog piv txwv yog dab tsi?
Ib lub sijhawm yog ib tug ntau yam ntawm cov nqi rau ib tug statistic. Rau piv txwv , tej zaum koj yuav xav tias qhov nruab nrab ntawm cov ntaub ntawv teev poob qhov chaw ntawm 10 thiab 100 (10 < Μ < 100). Ib lo lus hais txog yog ib qho ntsiab lus kwv yees , uas yog tus nqi tseeb, zoo li Μ = 55. Qhov ntawd "qhov chaw ntawm 5 thiab 15%" yog ib qho lub sijhawm kwv yees.
Ib sab saum toj no, dab tsi yog lub caij nyoog hauv kev txheeb cais? Txhais: Lub sijhawm Hauv txheeb cais rau qhov kev ntsuam xyuas ntawm ib qho parameter, ib tug ntau yam ntawm qhov tseem ceeb yog feem ntau teev nyob rau hauv uas parameter yuav tsum dag. Qhov ntau ntawm qhov tseem ceeb no yog hu ua ib ntus . Feem ntau ib ntus raug xaiv xws li qhov parameter ntog hauv nws nrog 95-99% qhov tshwm sim.
Hais txog qhov no, vim li cas peb thiaj li siv lub sijhawm kwv yees?
Point kev kwv yees muab peb tus nqi tshwj xeeb raws li ib qho kwv yees ntawm cov pejxeem parameter.. Kev kwv yees luv luv muab peb ntau yam ntawm qhov tseem ceeb uas yuav muaj cov pej xeem parameter. Qhov no lub sijhawm hu ua kev ntseeg siab lub sijhawm.
Dab tsi yog Point thiab lub sijhawm kwv yees?
Point kwv yees siv tus nqi ib zaug, qhov ntsuas ntsuas, thaum kev kwv yees lub caij nyoog siv ntau tus lej los xam cov ntaub ntawv hais txog cov pejxeem.
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