Demography yog qhov kev tshawb fawb ntawm cov pej xeem, tshwj xeeb tshaj yog tib neeg. Kev txheeb xyuas pej xeem tuaj yeem suav tag nrho cov zej zog lossis pab pawg uas tau teev tseg los ntawm cov txheej txheem xws li kev kawm, haiv neeg, kev ntseeg, thiab haiv neeg.
Lub ntsiab lus thiab txhais ntawm cov pej xeem yog dab tsi?
Demography yog kev tshawb fawb txog tib neeg cov pejxeem feem ntau nrog rau lawv qhov loj, lawv cov qauv thiab lawv txoj kev loj hlob; nws yuav siv sij hawm mus rau hauv tus account qhov ntau yam ntawm lawv cov yam ntxwv. Ntawm cov demographers.
Dab tsi yog qhov txhais zoo tshaj plaws ntawm pej xeem?
Demography txhais tau tias yog txoj kev tshawb fawb ntawm tib neeg cov pejxeem. … Kev kawm txog cov yam ntxwv ntawm tib neeg, xws li qhov loj me, kev loj hlob, qhov ntom ntom, kev faib tawm, thiab cov txheeb cais tseem ceeb.
Demography txhais li cas?
Lo lus demography los ntawm ob lo lus Greek thaum ub, demos, lub ntsiab lus "cov neeg," thiab graphy, lub ntsiab lus "sau los yog sau ib yam dab tsi" - yog li cov lus demography txhais tau tias "sau txog tib neeg." Zoo li ntau ceg ntawm kev tshawb fawb, pej xeem pib nyob rau hauv lub xyoo pua 19th, thaum lub dav dav craze rau cataloging …
Dab tsi yog pej xeem hauv kab lus?
Tus nqi ntawm cov pejxeem kev loj hlob tau cuam tshuam cov pej xeem hauv ntau lub tebchaws, qhov twg ib nrab ntawm cov pejxeem yog menyuam yaus. Raws li cov demography ntawm cov zej zog hauv zos hloov, yog li yuav tsum tau qhianthuav tawm ntawm theem. Nws txoj kev tshawb fawb tsom mus rau qhov cuam tshuam ntawm pej xeem thiab tus cwj pwm ntawm kev sib raug zoo thiab kev ua haujlwm.