Video: Dab tsi yog qhov nruab nrab cov txheeb cais?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv txheeb cais , cov nruab nrab - ntau los yog nruab nrab - heev ntawm ib txheej ntawm txheeb cais cov ntaub ntawv muaj nuj nqis yog tus lej lej ntawm qhov siab tshaj plaws thiab qhov tsawg kawg nkaus hauv cov ntaub ntawv teev tseg, txhais raws li: Cov nruab nrab - ntau yog qhov nruab nrab ntawm qhov ntau ; xws li, nws yog ib qho kev ntsuas ntawm central nyiam.
Hauv qhov no, dab tsi yog qhov nruab nrab hauv kev txheeb cais?
Nruab nrab , ib qho yooj yim txheeb cais cov cuab yeej tsom xam, txiav txim siab tus lej uas yog ib nrab ntawm qhov siab tshaj thiab qis tshaj ntawm koj cov ntaub ntawv teev. Muab cov lej ntawm tus lej siab tshaj thiab qis tshaj los ntawm ob los suav nruab nrab.
Tsis tas li ntawd, puas yog midpoint tib yam li midrange? Nruab nrab . Cov nruab nrab yog qhov yooj yim qhov nruab nrab nruab nrab ntawm tus nqi siab tshaj thiab qis tshaj.
Tom qab ntawd, ua li cas koj thiaj nrhiav tau tus nqi nruab nrab?
Nws kuj tseem ceeb kom paub tias tus lej twg yog dab tsi nruab nrab - txoj kev ntawm qhov tsawg kawg nkaus tus nqi thiab qhov loj tshaj tus nqi ntawm cov ntaub ntawv teev. Tus lej no hu ua nruab nrab . Yuav nrhiav tau nruab nrab , ntxiv ua ke qhov tsawg tshaj plaws thiab loj tshaj tus nqi thiab faib los ntawm ob, los yog lwm yam lus, nrhiav qhov txhais tau tias tsawg tshaj plaws thiab loj tshaj tus nqi.
Tus qauv rau ntau yam yog dab tsi?
Txhua yam peb yuav tsum tau ua yog nrhiav qhov sib txawv ntawm cov ntaub ntawv loj tshaj plaws hauv peb lub teeb thiab cov ntaub ntawv tsawg tshaj plaws. Hais succinctly peb muaj cov hauv qab no qauv : Ntau yam = Tus nqi siab tshaj – Tus nqi tsawg kawg nkaus. Piv txwv li, cov ntaub ntawv teev 4, 6, 10, 15, 18 muaj qhov siab tshaj plaws ntawm 18, tsawg kawg yog 4 thiab ib qho ntau 18-4 = 14.
Pom zoo:
Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
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