ZINTHU ZONSE

Ziwerengero mu Sayansi ya Zaumboni Sayansi ya zaumboni ndi gawo lomwe limayang'ana kwambiri pakugwiritsa ntchito sayansi pothandiza njira zoyendetsera malamulo, kuyambira kuzindikira olakwa ndi kukonzanso zochitika mpaka kuwunika mphamvu ya umboni. Kumbuyo kwa njira zosiyanasiyana za zaumboni—monga kusanthula DNA, kujambula zala, kusanthula kwa zinthu, kuwononga poizoni, ndi kujambula zithunzi za digito—kuli maziko ofunikira omwe nthawi zambiri samadziwika: ziwerengero. Ziwerengero zimathandiza akatswiri… Werengani zambiri

Kufunika kwa Ziwerengero mu Masamu Ziwerengero ndi nthambi yofunika kwambiri ya masamu. Ngakhale kuti masamu nthawi zambiri amamveka ngati sayansi ya manambala, mapangidwe, ndi ubale wamalingaliro, ziwerengero zimagwira ntchito ngati mlatho wolumikiza mfundo za masamu ndi dziko lenileni, lomwe lili lodzaza ndi kusiyanasiyana ndi kusatsimikizika. M'moyo watsiku ndi tsiku, anthu amakumana ndi deta: zigoli za mayeso, zotsatira zogulitsa,... Werengani zambiri

Mayeso a Chi-Square Odziyimira Pawokha Mayeso a chi-square (χ²) odziyimira pawokha ndi njira yosawerengera yomwe imagwiritsidwa ntchito nthawi zambiri kudziwa ngati zinthu ziwiri zamagulu (nominal kapena ordinal) zikugwirizana kapena sizikugwirizana. Mu maphunziro ambiri a maphunziro a anthu, thanzi, maphunziro, malonda, ndi kusanthula mfundo, ofufuza nthawi zambiri amakumana ndi deta yamagulu monga jenda… Werengani zambiri

Ziwerengero mu Anthropology Anthropology nthawi zambiri imamveka ngati sayansi yogwirizana kwambiri ndi nkhani—nkhani za moyo, miyambo, zizindikiro, ndi matanthauzo omwe anthu amitundu yosiyanasiyana amagawana. Komabe, kupitirira nkhani zolemerazi, anthropology imafunanso njira yodziwira machitidwe mwadongosolo. Apa ndi pomwe ziwerengero zimagwira ntchito yofunika kwambiri. Ziwerengero zimathandiza akatswiri a anthropology kusintha zomwe akuwona kukhala zomwe zingayesedwe, … Werengani zambiri

Kusanthula Ziwerengero za Ubwino Mu nthawi ya mpikisano woopsa kwambiri, ubwino siwongowonjezera phindu, koma ndi chofunikira kwambiri kuti zinthu ndi ntchito zipitirire pamsika. Mabungwe ambiri akhazikitsa zowunikira, ma audit, ndi kusintha njira. Komabe, popanda njira yoyezera, zoyesayesa zowongolera ubwino nthawi zambiri zimakhala zosankha zochokera pamalingaliro okha. Apa ndi pomwe kusanthula ziwerengero kumabwera… Werengani zambiri

Kusanthula kwa Mndandanda wa Nthawi mu Ziwerengero Kusanthula kwa mndandanda wa nthawi ndi nthambi ya ziwerengero zomwe zimaphunzira deta yomwe imasonkhanitsidwa motsatizana pakapita nthawi, monga tsiku ndi tsiku, sabata iliyonse, mwezi uliwonse, kapena pachaka. Mosiyana ndi deta yodutsa m'magawo osiyanasiyana, yomwe imasonkhanitsidwa nthawi imodzi, kusanthula kwa mndandanda wa nthawi kumagogomezera kusintha kwa zinthu ndi machitidwe omwe amakula pakapita nthawi… Werengani zambiri

Kufunika kwa Ziwerengero mu Sayansi Ziwerengero ndi chimodzi mwa zinthu zazikulu zomwe zimapangitsa kuti sayansi yamakono ipite patsogolo. Pafupifupi gawo lililonse—kuyambira zamankhwala ndi zamoyo mpaka zamaganizo ndi zachuma mpaka zaukadaulo—limadalira ziwerengero kuti ligwiritse ntchito deta, kuyesa malingaliro, ndikupeza mfundo zodalirika. Mu nthawi yomwe deta imapezeka mosavuta ndipo zisankho ziyenera kupangidwa mwachangu, udindo wa ziwerengero umakhala... Werengani zambiri

Mutu: Njira za Monte Carlo mu Ziwerengero Chiyambi Mu dziko la ziwerengero, njira za Monte Carlo ndi njira yothandiza kwambiri pochita zoyeserera ndi kusanthula manambala. Zoyambitsidwa pakati pa zaka za m'ma 20 ndi akatswiri monga John von Neumann ndi Stanislaw Ulam, njirazi zimagwiritsa ntchito manambala osasinthika kuthetsa mavuto omwe akanakhala ovuta kapena osatheka kuwathetsa ndi... Werengani zambiri

Maziko Ogawa Mwayi: Kugawa mwayi ndi lingaliro lofunikira mu ziwerengero ndi mwayi lomwe limafotokoza momwe mwayi umagawidwira pakati pa mitengo yosasinthika. Kugawa mwayi kungapereke chidziwitso chofunikira chokhudza kuthekera kwa chochitika china kapena mtengo womwe ungachitike. Nkhaniyi ikambirana zoyambira za kugawa mwayi, mitundu ya kugawa mwayi, ndi momwe amagwiritsidwira ntchito ndi zitsanzo m'moyo watsiku ndi tsiku. Kodi… Werengani zambiri

Ziwerengero za Kasamalidwe: Masiku ano, deta yakhala imodzi mwa zinthu zofunika kwambiri m'bungwe. Kutha kusonkhanitsa, kusanthula, ndi kutanthauzira deta kumapereka mwayi wopikisana kwambiri. Mu kasamalidwe, ziwerengero zimakhala ndi gawo lofunika kwambiri popanga zisankho zoyendetsedwa ndi deta. Nkhaniyi ikambirana za udindo ndi kufunika kwa ziwerengero mu... Werengani zambiri