Vim li cas siv yates kho?

Cov txheej txheem:

Vim li cas siv yates kho?
Vim li cas siv yates kho?
Anonim

Qhov cuam tshuam ntawm Yates 'kev kho yog txhawm rau tiv thaiv kev ntsuas qhov tseem ceeb ntawm cov ntaub ntawv me me. Cov mis no feem ntau siv thaum tsawg kawg ib lub xov tooj ntawm lub rooj muaj qhov xav tau suav tsawg dua 5.

Yates puas tsim nyog kho?

Txawm hais tias qee tus neeg xav kom koj yuav tsum siv qhov kev kho tsuas yog tias koj xav tau lub xov tooj ntawm tes qis dua 10 lossis txawm tias 5, lwm tus xav kom koj tsis txhob siv nws tag nrho. Ib lub cev loj ntawm kev tshawb fawb pom tias qhov kev kho yog nruj dhau.

Yates kho qhov tseeb yog dab tsi?

Txog kom txo qhov yuam kev hauv qhov kwv yees, Frank Yates, tus kws sau ntawv Askiv, tau hais tias kho kom raug txuas ntxiv uas kho cov mis rau Pearson's chi-squared test los ntawm rho tawm 0.5 los ntawm qhov sib txawv ntawm txhua qhov pom muaj txiaj ntsig thiab nws tus nqi xav tau hauv 2 × 2 lub rooj sib tham.

Kev siv chi-square yog dab tsi?

Kev ntsuas chi-square yog qhov kev ntsuas ntsuas siv los piv cov txiaj ntsig pom nrog cov txiaj ntsig xav tau. Lub hom phiaj ntawm qhov kev xeem no yog los txiav txim seb qhov sib txawv ntawm cov ntaub ntawv pom thiab cov ntaub ntawv xav tau yog vim muaj caij nyoog, lossis yog vim muaj kev sib raug zoo ntawm qhov sib txawv koj tab tom kawm.

Tus nqi chi squared yog dab tsi?

Rau qhov chi-square kwv yees kom siv tau, qhov xav tau zaus yuav tsum yog tsawg kawg 5. Qhov kev sim no tsis siv tau rau cov qauv me me, thiab yog tias qee qhov kev suav tsawg duatsib (tej zaum yuav nyob ntawm tus tails).

Pom zoo:

Nthuav cov khoom
Puas talcum hmoov yaj hauv dej?
Nyeem ntxiv

Puas talcum hmoov yaj hauv dej?

Talc yog xyaum insoluble hauv dej, dilute ntxhia acids, thiab dilute daws ntawm alkali halides thiab alkaline hydroxides. Nws yog soluble hauv kub concentrated phosphoric acid. Vim li cas talcum hmoov tsis yaj hauv dej? Tsim Hauv Tsev.

Vim li cas thiaj siv schlieren photography?
Nyeem ntxiv

Vim li cas thiaj siv schlieren photography?

Schlieren kev yees duab yog txheej txheem pom kev uas yog siv los yees duab cov dej ntws ntawm qhov sib txawv. Tsim los ntawm German physicist lub yim hli ntuj Toepler nyob rau hauv 1864 los kawm supersonic motion, nws yog dav siv nyob rau hauv aeronautical engineering los yees duab cov ntws ntawm huab cua nyob ib ncig ntawm cov khoom.

Yuav rov hais dua email li cas?
Nyeem ntxiv

Yuav rov hais dua email li cas?

Koj tuaj yeem sim: "Kuv tab tom ua raws li hauv qab no" lossis "Ua raws li qhov no [thov / nug / haujlwm]" "Kuv rov qab rau hauv qab no" lossis "Circling rov qab rau ntawm no [thov / nug / assignment]