Ntawm chebyshev lwm qhov tsis sib xws?

Cov txheej txheem:

Ntawm chebyshev lwm qhov tsis sib xws?
Ntawm chebyshev lwm qhov tsis sib xws?
Anonim

Nyob rau hauv txoj kev xav muaj peev xwm, Chebyshev qhov tsis sib xws (tseem hu ua Bienaymé-Chebyshev tsis sib xws) lav tias, rau cov chav kawm dav dav ntawm qhov yuav tshwm sim, tsis muaj ntau tshaj li ib feem ntawm qhov muaj nuj nqis tuaj yeem ntau dua li qhov tseeb. nrug ntawm qhov txhais tau.

Koj ua li cas Chebyshev qhov tsis sib xws?

Chebyshev qhov tsis sib xws muab txoj hauv kev kom paub qhov feem ntawm cov ntaub ntawv poob hauv K tus qauv sib txawv los ntawm qhov txhais tau rau txhua cov ntaub ntawv teev.

Ib yam ntawm qhov tsis sib xws

  1. Rau K=2 peb muaj 1 – 1/K2=1 - 1/4=3/4=75%. …
  2. Rau K=3 peb muaj 1 – 1/K2=1 - 1/9=8/9=89%. …
  3. Rau K=4 peb muaj 1 – 1/K 2=1 - 1/16=15/16=93.75%.

Chebyshev qhov tsis sib xws ntsuas dab tsi?

Chebyshev qhov tsis sib xws, tseem hu ua Chebyshev's theorem, yog cov cuab yeej txheeb cais uas ntsuas kev sib cais hauv cov ntaub ntawv cov pej xeem uas hais tias tsis pub ntau tshaj 1 / k2 ntawm qhov kev faib cov txiaj ntsig yuav yog ntau tshaj k tus qauv sib txawv deb ntawm qhov txhais.

C hauv Chebyshev qhov tsis sib xws yog dab tsi?

Markov qhov tsis sib xws muab peb cov ciam teb sab saud ntawm tus Tsov tus tw qhov tshwm sim ntawm qhov tsis muaj qhov tsis zoo ntawm qhov sib txawv, raws li qhov kev cia siab xwb. Cia X yog qhov sib txawv ntawm qhov sib txawv (tsis tas yuav tsis yog qhov tsis zoo) thiab cia c yog tus lej zoo. …

txoj cai 95% yog dab tsi?

Txoj Cai 95% hais tias kwv yees95% ntawm kev soj ntsuam poob nyob rau hauv ob tus qauv sib txawv ntawm qhov txhais tau tias ntawm kev faib tawm ib txwm. Kev faib khoom ib txwm muaj Ib hom kev faib khoom sib luag, tseem hu ua lub tswb-puab faib.

Pom zoo:

Nthuav cov khoom
Yuav tsum kho tus thawj coj yuav tsum hyphenated?
Nyeem ntxiv

Yuav tsum kho tus thawj coj yuav tsum hyphenated?

AP Cov Lus Qhia ntawm hyphenation ntawm lub npe Kev nkag mus rau hauv 2002 AP Stylebook hais txog lub hyphenating ntawm lub npe yog raws li nram no: " Editor in Chief: Ua raws li cov qauv ntawm kev tshaj tawm, tab sis feem ntau, tsis muaj hyphens.

Qhov hluav taws xob reverberating nyob qhov twg?
Nyeem ntxiv

Qhov hluav taws xob reverberating nyob qhov twg?

Hom kev rov qab rov qab no muaj nyob hauv qhov chaw ua pa ua pa Chaw ua pa Lub chaw ua pa yog tsim los ntawm peb pawg ua pa loj ntawm cov neurons, ob qho hauv medulla thiab ib qho hauv cov pons. … Lub chaw ua pa yog lub luag hauj lwm rau tsim thiab tswj lub suab ntawm kev ua pa, thiab kuj kho qhov no hauv homeostatic teb rau kev hloov ntawm lub cev.

Yuav tsum yog ntug dej hiav txwv sab hnub tuaj yuav tsum muaj peev txheej?
Nyeem ntxiv

Yuav tsum yog ntug dej hiav txwv sab hnub tuaj yuav tsum muaj peev txheej?

Thaum xa mus rau ib cheeb tsam tshwj xeeb, koj yuav tsum sau cov lus East Coast xws li "Kuv tabtom mus rau Sab Hnub Tuaj" vim "East Coast" yog lub npe tsim nyog hauv qhov no. Txawm li cas los xij, yog tias koj xa mus rau thaj chaw dav dav, xws li "