Video: Yuav ua li cas koj nthuav qhia cov txheeb cais nyob rau hauv ib daim ntawv qhia?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev piav qhia Cov txiaj ntsig
suav nrog lub rooj nrog qhov tsim nyog piav txheeb cais e.g. qhov nruab nrab, hom, nruab nrab, thiab tus qauv sib txawv. Cov piav statistic yuav tsum muaj feem xyuam rau lub hom phiaj ntawm kev kawm; nws yuav tsum tsis txhob suav nrog rau lub hom phiaj ntawm nws. Yog tias koj tsis mus siv hom nyob qhov twg, tsis txhob suav nrog nws.
Hais txog qhov no, koj yuav ua li cas qhia txog kev txheeb cais?
Thaum twg qhia piav qhia statistic los ntawm qhov sib txawv koj yuav tsum, tsawg kawg, qhia ib qho kev ntsuas ntawm qhov nruab nrab nyiam thiab ntsuas qhov sib txawv. Feem ntau, qhov no suav nrog qhov nruab nrab thiab qhia tus qauv sib txawv (saib hauv qab). Hauv APA hom ntawv koj tsis siv cov cim tib yam li txheeb cais cov qauv.
Tsis tas li ntawd, kuv yuav piav qhia cov txheeb cais hauv SPSS li cas? Siv lub Descriptives Dialog Window
- Nyem Analyze> Descriptive Statistics> Descriptives.
- Ntxiv cov variables Lus Askiv, Nyeem, Lej, thiab Sau rau lub npov Variables.
- Kos lub thawv Txuag cov nqi tsim nyog raws li qhov sib txawv.
- Nyem OK thaum ua tiav.
Ntawm no, dab tsi yuav tsum tau suav nrog hauv cov ntaub ntawv txheeb cais?
Kev piav qhia txheeb cais tau tawg mus rau hauv kev ntsuas ntawm lub hauv paus nyiam thiab ntsuas kev hloov pauv (kev sib kis). Kev ntsuas ntawm qhov nruab nrab nyiam suav nrog qhov nruab nrab, nruab nrab, thiab hom, thaum ntsuas qhov sib txawv suav nrog tus qauv sib txawv, qhov sib txawv, qhov tsawg kawg nkaus thiab siab kawg hloov pauv, thiab kurtosis thiab skewness.
M thiab SD txhais li cas hauv kev kawm?
Cov txheem sib txawv ( SD ) ntsuas tus nqi ntawm qhov sib txawv, los yog dispersion, rau ib qho kev kawm ntawm cov ntaub ntawv los ntawm cov txhais tau tias , thaum tus txheej txheem yuam kev ntawm lub txhais tau tias (SEM) ntsuas deb npaum li cas tus qauv txhais tau tias ntawm cov ntaub ntawv zoo li yuav yog los ntawm cov neeg tiag tiag txhais tau tias . SD yog qhov dispersion ntawm cov ntaub ntawv nyob rau hauv ib txwm faib.
Pom zoo:
Dab tsi yog cov xim muaj nyob rau hauv daim ntawv qhia kev phom sij rau kev noj qab haus huv hauv NFPA 704?
NFPA 704 pob zeb diamond kos npe siv los tso saib cov ntaub ntawv no muaj plaub ntu xim: xiav, liab, daj, thiab dawb. Txhua ntu yog siv los txheeb xyuas ib pawg sib txawv ntawm qhov muaj peev xwm txaus ntshai. Ntu xiav ntawm NFPA xim code cim qhia txog kev phom sij rau kev noj qab haus huv
Yuav ua li cas koj ua ib daim ntawv piav qhia txheeb cais hauv Excel?
Kauj ruam 1: Ntaus koj cov ntaub ntawv rau hauv Excel, hauv ib kab. Piv txwv li, yog tias koj muaj kaum yam khoom hauv koj cov ntaub ntawv teev, ntaus lawv rau hauv hlwb A1 txog A10. Kauj ruam 2: Nyem qhov "Cov ntaub ntawv" tab thiab tom qab ntawd nyem "Data Analysis" nyob rau hauv pawg tshuaj ntsuam. Kauj ruam 3: Taw qhia "Kev piav qhia Statistics" nyob rau hauv pop-up Data Analysis window
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Yuav ua li cas koj sau txoj kab nqes nqes intercept daim ntawv nyob rau hauv tus qauv daim ntawv?
Standard form yog lwm txoj hauv kev los sau daim ntawv nqes hav-intercept (as opposed to y=mx+b). Nws sau li Ax+By=C. Koj tuaj yeem hloov daim ntawv nqes hav-intercept rau cov qauv zoo li no: Y=-3/2x + 3. Tom ntej no, koj cais qhov y-intercept (qhov no nws yog 2) zoo li no: Ntxiv 3/2x rau txhua sab ntawm kab zauv kom tau qhov no: 3/2x + y = 3
Yuav ua li cas koj sau ib qho kev sib npaug nyob rau hauv txoj kab nqes intercept daim ntawv rau ib lub rooj?
Siv qhov sib npaug y = mx + b thiab ntsaws rau hauv tus nqi m (m = 1) thiab ib khub ntawm (x, y) kev tswj hwm ntawm lub rooj, xws li (5, 3). Ces daws rau b. Thaum kawg, siv qhov m thiab b qhov tseem ceeb koj pom (m = 1 thiab b = -2) los sau cov kab zauv