Qhov kev xaiv raug yog (b): - 1.5 Qhov tshwm sim ntawm qhov xwm txheej tsis tuaj yeem yog - 1.5 vim qhov tshwm sim ntawm qhov xwm txheej tsis tuaj yeem tsis zoo. Qhov tshwm sim ntawm qhov tshwm sim ib txwm nyob ntawm 0 txog 1 (0 thiab 1 suav nrog) piv txwv li 0 ≤ P (E) ≤ 1. Tsis tas li ntawd nyob rau hauv feem pua, nws nyob ntawm 0% mus rau 100% (0 thiab 100 suav nrog).
Dab tsi tuaj yeem yog qhov tshwm sim?
Qhov tshwm sim ntawm qhov xwm txheej yuav tsis yog tsawg dua 0. Qhov no yog vim 0 tsis yooj yim sua (nco ntsoov tias ib yam dab tsi yuav tsis tshwm sim). Qhov tshwm sim ntawm qhov tshwm sim yuav tsis ntau tshaj 1. Qhov no yog vim 1 paub tseeb tias qee yam yuav tshwm sim.
Qhov twg hauv qab no Tsis tuaj yeem yog qhov tshwm sim 0?
Peb paub, qhov tshwm sim ntawm qhov tshwm sim yog ntau dua lossis sib npaug ntawm 0 thiab ib txwm tsawg dua lossis sib npaug rau 1. Li no qhov tshwm sim ntawm qhov tshwm sim tsis tuaj yeem tsis zoo. tsis tuaj yeem yog qhov tshwm sim ntawm qhov xwm txheej.
Yuav 0 yog qhov tshwm sim ntawm qhov xwm txheej?
Qhov tshwm sim ntawm qhov tshwm sim yog qhov tshwm sim ntawm qhov xwm txheej tshwm sim. Qhov tshwm sim yog tus nqi ntawm (thiab suav nrog) xoom thiab ib qho. … Ib qho xwm txheej nrog qhov tshwm sim ntawm xoom [P(E)=0] yuav tsis tshwm sim (ib qho xwm txheej tsis tuaj yeem) Ib qho xwm txheej nrog qhov tshwm sim ntawm ib [P(E)=1] txhais tau tias qhov xwm txheej yuav tsum tshwm sim (ib qho xwm txheej).
Qhov twg hauv qab no Tsis tuaj yeem muaj qhov tshwm sim?
Peb paub tias qhov tshwm sim ntawm qhov tshwm sim E nyob nruab nrab ntawm 0 thiab 1, uas yog, 0 ≤ P(E) ≤ 1 thiab nws tsis tuaj yeem tsawg dua 0 thiab ntau dua 1. Yog li, kev xaiv (B) - 1.5 tsis tuaj yeem yog qhov tshwm sim ntawm qhov xwm txheej vim nws tsis zoo.
