Ungabala kanjani isampula yezibalo ku-Excel?

‌ Ungabala kanjani isampula yezibalo ku-Excel?

I-Excel iyithuluzi lespredishithi elinamandla elingasebenziseki kuphela ukuhlela kanye hlaziya idatha, kodwa nokwenza izibalo zezibalo.⁤ Kulesi sihloko, uzofunda ukudweba isampula yezibalo ku-Excel, Igxathu emvakwe gxathu. Kusukela ekukhethweni okungahleliwe kwedatha ukuya ⁤ekubalweni kwezinyathelo ezichazayo, sizohlola amathuluzi ahlukene nemisebenzi⁣ i-Excel enikezayo ukuze iyenze. le nqubo ngempumelelo futhi unembile. Uma ufuna ukuthola imiphumela ethembekile, emele eqoqweni ledatha, funda ukuze uthole ukuthi ungasebenzisa kanjani i-Excel ukuthatha amasampula ezibalo.

- Isingeniso sokusampula kwezibalo ku-Excel

Kuyini ukusampula kwezibalo?

Ukusampula kwezibalo Kuyinqubo okuyisisekelo ocwaningweni lwesayensi nokuhlaziywa kwedatha Kuhlanganisa ukukhetha iqoqo elincane labantu abaningi ukuze bathole ulwazi futhi benze imibono mayelana nenani labantu lilonke. Lokhu ngokuvamile kwenziwa ngenxa yobunzima noma ukungenzeki kokuqoqa idatha kubo bonke abantu.

Kunezindlela ezihlukene zokuthatha amasampula ezibalo, njengokusampula okungahleliwe, ukusampula okuhlutshiwe, ukusampula kweqoqo, kanye nokusampula okuhlelekile Ngayinye yalezi zindlela inezayo izinzuzo kanye nokungalungi, ngakho-ke kubalulekile ukukhetha indlela efanele ngokwezinjongo zocwaningo kanye nezici zenani labantu.

- Ukulungiswa kwedatha yokuhlaziywa kwezibalo ku-Excel

Emkhakheni wokuhlaziya izibalo, kubalulekile ukulungisa kahle idatha ngaphambi kokwenza noma yiluphi uhlobo locwaningo. Esinye sezinyathelo zokuqala kule nqubo ukukhishwa kwesampula emele abantu abangaphansi kocwaningo. Kulesi sihloko, sizokukhombisa ukuthi ungasebenzisa kanjani i-Excel ukuze uthole isampula yezibalo zedatha yakho.⁤

1. Nquma usayizi wesampula: Ngaphambi kokuqala, kubalulekile ukuchaza usayizi wesampula ofuna ukuyithola. Lokhu kuzoncika ezintweni ezihlukahlukene, njengezinga lokuzethemba nokunemba okufunayo ekuhlaziyeni kwakho. Uma usayizi wesampula usunqunyiwe, ungaqhubeka nezinyathelo ezilandelayo.

2. Khetha idatha yesampula: Ku-Excel, ungasebenzisa izindlela ezahlukene ukuze ukhethe isampula engahleliwe yedatha yakho. Inketho edumile ukusebenzisa umsebenzi othi "RANDOM.BETWEEN" ohlanganiswe nomsebenzi othi "INDEX". Le misebenzi ikuvumela ukuthi ukhiqize inombolo engahleliwe kumugqa ngamunye wedatha yakho bese ukhetha lawo marekhodi angena ngaphakathi kwesampula lebanga elinikeziwe Ungasebenzisa futhi umsebenzi othi "SAMPLE" ukuze ukhethe isampula engahleliwe ngaphandle kokushintshanisa .

3. Hlaziya isampula yedatha yakho: ⁣Uma usukhethile isampula yakho yezibalo ku-Excel, yisikhathi sokwenza ukuhlaziya. Ungasebenzisa amathuluzi nemisebenzi ehlukahlukene ye-Excel ukubala izilinganiso zezibalo ezifana nencazelo, i-median, ukuchezuka okujwayelekile, phakathi kokunye. Ungakwazi futhi ukudala amashadi nokubonwayo ukuze uhlole futhi uxhumane nemiphumela yakho ngempumelelo.

Khumbula ukuthi ukulungiswa kwedatha okufanele kubalulekile ekuhlaziyweni kwezibalo okunembile. Ngokusebenzisa i-Excel, ungadweba isampula elimele⁤ idatha yakho indlela ephumelelayo futhi uhlaziye kabanzi ngazo. Ungangabazi ukuzama imisebenzi ehlukene namathuluzi ukuze uthole imiphumela engcono kakhulu ezifundweni zakho zezibalo!

- Ukusebenzisa amafomula e-Excel ukubala usayizi wesampula ofanele

Ku-Excel kunamafomula ahlukene asivumela ukubala⁤ usayizi wesampula ofanele ukuze senze izifundo zezibalo. Lawa mafomula awusizo ngokukhethekile kulabo⁤ ochwepheshe abadinga ukuthola idatha emele abantu abaningi ngendlela enembile nephumelelayo. Okulandelayo, sizobona amanye amafomula asetshenziswa kakhulu ku-Excel ngale njongo.

Ifomula n: Le fomula⁢ isivumela ukuthi sibale usayizi wesampula odingekayo kubantu abanomkhawulo⁣. Ukuze siyisebenzise, ​​kufanele sazi usayizi wenani labantu (N), izinga lokuzethemba elifiswayo (Z), umkhawulo owamukelekayo wephutha (E) kanye nokuchezuka kwezinga labantu (σ). Ngokusebenzisa le fomula, sizothola usayizi wesampula odingekayo ukuze sithole imiphumela ebalulekile ngokwezibalo.

Iphuzu ifomula yefu: Le fomula iwusizo kakhulu uma sidinga ukuthola isampula engahleliwe esibalweni sabantu ku-Excel. Ifomula isebenzisa imisebenzi ye-RAND kanye ne-RANK ukuze ukhethe ngokungahleliwe idatha kubantu. Ngale ndlela, singathola isampula elimele abantu ngokushesha futhi kalula. Le fomula iwusizo ikakhulukazi uma sisebenza ngamavolumu amakhulu edatha.

- Izinyathelo zokukhiqiza isampula engahleliwe ku-Excel

I-Excel⁢ iyithuluzi eliwusizo kakhulu lokukhiqiza amasampula ezibalo ngokushesha nakalula. Ukuze uthole isampula engahleliwe ku-Excel, ungalandela lezi zinyathelo:

Isinyathelo 1: Vula entsha Ifayela le-Excel futhi uqiniseke ukuthi unedatha ofuna ukuyisampula kukholomu. Kubalulekile ukukhumbula ukuthi idatha kufanele ihlelwe ngemigqa namakholomu ukuze i-Excel ikwazi ukusebenzisana nayo ngokuphumelelayo.

Isinyathelo 2: ⁢ Khetha ikholomu lapho idatha ofuna ukuyisampula itholakala khona. Ukuze wenze njalo, chofoza uhlamvu lwekholomu phezulu kuspredishithi. Isibonelo, uma idatha yakho ikukholomu A, chofoza uhlamvu "A."

Isinyathelo 3: ⁢ Kuthebhu "Idatha" ye ibha yamathuluzi Ku-Excel, bheka inketho ethi "Hlunga & Hlunga" bese uchofoza kuyo. Bese ukhetha inketho "Yokuhlunga Okungahleliwe" ukuze ukhiqize isampula engahleliwe yedatha ekhethiwe. I-Excel izoshova idatha bese ikhetha isampula yayo engahleliwe.

Ngokulandela lezi zinyathelo, uzokwazi ukwenza isampula engahleliwe yedatha yakho ⁢ku-Excel. Kubalulekile ukuqaphela ukuthi ukunemba kwesampula kuzoncika kusayizi wedatha yoqobo. Uma inani ledatha lilikhulu, isampula ekhiqiziwe izoba nembe kakhulu. Khumbula ukuthi i-Excel inikeza inhlobonhlobo yemisebenzi namathuluzi okuhlaziya idatha, ngakho ukuhlola amakhono ayo kuzokuvumela ukuthi uthole imiphumela yezibalo ephelele.

- Ukusebenzisa indlela yokukhetha kanye ne-stratification kusampula yezibalo

Kunamathuluzi ahlukahlukene asivumela ukuthi sithathe isampula yezibalo ngokuphumelelayo ku-Excel. Enye yezinto zokuqala okufanele sizicabangele sebenzisa imibandela yokukhetha efanele ukuqinisekisa ukumela⁤ kwesampuli yethu. Ukuze senze lokhu, singasebenzisa amafomula nemisebenzi efana nokungahleliwe phakathi kwemikhawulo, okusivumela ukuthi sikhethe ngokungahleliwe izici zabantu bethu. Ngaphezu kwalokho, kubalulekile ukusungula imibandela yokuhlukanisa, ezosisiza ukuthi sihlukanise isampula yethu ngamaqembu amancane afanayo, okuzosinikeza umbono onembe kakhudlwana weqiniso.

A indlela evamile⁢ yokusebenzisa imibandela yokuhlukanisa Kusetshenziswa izihlungi ku-Excel. Ngaleli thuluzi, singakhetha idatha⁤ ehlangabezana nemibandela ethile, efana neminyaka⁢ ethile,⁢ ubulili, noma izinga lemali engenayo. Ngale ndlela, isampula yethu izokwakhiwa ngamasethi amancane abantu ngabanye abanezici ezifanayo, okuzosivumela ukuthi sithole imiphumela enembayo nebalulekile.

Kubalulekile ukukhumbula ukuthi, lapho sithatha isampula yezibalo ku-Excel, kufanele siqinisekise lokho khetha usayizi wesampula ofanele ngezinjongo zethu zocwaningo. Ukwenza lokhu, kunezindlela ezihlukene namafomula azosisiza ukuthi sinqume ukuthi zingaki izici okufanele sizifake kusampula yethu, njengefomula yesampula yesampula engahleliwe noma usayizi wesampula odingekayo ukuze uthole ukunemba nokuzethemba okuthile . Ngokukhetha usayizi wesampula owanele, sizogwema ukuchema futhi sithole imiphumela ethembekile nemele abantu esibafundelayo.

- Ukuqinisekiswa nokuqinisekiswa kwesampula yezibalo ku-Excel

Ukuqinisekiswa nokuqinisekiswa kwesampula yezibalo ku-Excel

Ngoba qinisekisa futhi uqinisekise ⁢isampula yezibalo ⁢ku-Excel, kuyadingeka ukulandela okuthile izinyathelo ezibalulekile lokho kuzoqinisekisa ukunemba⁢ nokuthembeka kwedatha etholiwe. Okokuqala, kufanele siqinisekise ukuthi isampula limele abantu esifuna ukusifunda. Lokhu kusho ukuthi kufanele ibonise ngokunembile izici nokuhlukahluka okukhona kusibalo sabantu esishiwo. Ukufeza lokhu, singalandela lezi zinyathelo ezilandelayo:

1. Chaza usayizi wesampula: Esinye sezici ezibaluleke kakhulu okufanele sicatshangelwe usayizi wesampula. Lokhu kumele kube kukhulu ngokwanele ukuze ube nezinga elanele lokuzethemba. Ukuze sinqume—usayizi ophelele, singasebenzisa amafomula ezibalo afana nokubala umkhawulo wephutha noma ileveli yokuzethemba efunekayo. .

2. Khetha isampula ngokungahleliwe: Kubalulekile ukuthi isampula likhethwe ngokungahleliwe ukuze kugwenywe ukuchema futhi kuqinisekiswe ukumeleleka kwedatha. Ukuze senze lokhu ku-Excel, singasebenzisa umsebenzi we-RANDOM ngokuhlanganyela nomsebenzi we-CHOOSE ukuze sikhethe ngokungahleliwe isethi engaphansi yedatha kusipredishithi sethu.

3. Qinisekisa idatha eqoqiwe: Uma isampula selitholakele, kubalulekile ukuqinisekisa idatha eqoqwe ukuze kuqinisekiswe ikhwalithi yayo. Lokhu kuhlanganisa ukuhlola amaphutha okokufaka, izinto ezingaphandle, noma idatha engekho. Ku-Excel, singasebenzisa amathuluzi anjengesihlungi esizenzakalelayo noma amafomula okuqinisekisa idatha ukuze sihlonze futhi silungise amaphutha angenzeka.

Ngokulandela lezi zinyathelo, singakwazi qinisekisa futhi uqinisekise isampula yezibalo ku-Excel futhi uqiniseke ⁤ ngokuba nedatha ethembekile nemele⁤ yabantu esibathandayo. Khumbula ukuthi ukunemba kwemiphumela kuzoncika kakhulu kwikhwalithi nokuphathwa okulungile kwesampula, ngakho-ke kubalulekile ukunikela isikhathi nokunaka kulesi sigaba senqubo.

- Ukuhlaziywa nokumelwa okubukwayo kwemiphumela yesampula yezibalo ku-Excel

Ukuhlaziywa nokumelwa okubonakalayo kwemiphumela yesampula yezibalo ku-Excel

Kulesi sihloko, sizokukhombisa ukuthi ungathatha kanjani isampula yezibalo ku-Excel nokuthi ungayihlaziya kanjani futhi uyimele kanjani imiphumela etholiwe. I-Excel iyithuluzi elinamandla elikuvumela ukuthi wenze izibalo zezibalo ngokushesha nangempumelelo. Ngale miyalo, uzokwazi ukusebenzisa izindlela zezibalo kudatha yakho futhi wethule imiphumela ngendlela ecacile nefingqiwe.

Isinyathelo 1: Thola isampula yezibalo ku-Excel

Isinyathelo sokuqala sokuhlaziya izibalo ku-Excel ukuthola isampula elimele idatha yakho. Ukwenza lokhu, kumele ukhethe isampula engahleliwe evela kusethi yakho yedatha.. I-Excel inikezela ngezinketho⁤ ezimbalwa zokwenza lokhu, njengomsebenzi othi “RANDOM.BETWEEN”, okhiqiza izinombolo ezingahleliwe phakathi kwebanga elinikeziwe. Ungasebenzisa futhi umsebenzi othi “INDEX” kanye nomsebenzi othi “MATCH” ukuze ukhethe amanani angahleliwe kukholamu ethile yedatha.

Uma usulitholile isampula lezibalo, libalulekile hlela idatha kuthebula ukuze ihlaziyeke kalula. Ungasebenzisa imisebenzi ye-Excel, efana ne-SORT ne-FILTER, ukuze uhlele idatha ngendlela ekhuphukayo noma eyehlayo, kanye nokuhlunga imiphumela ngokusekelwe kumibandela ethile. Uma usuyihlelile idatha yakho, usulungele ukwenza ukuhlaziya kwezibalo ku-Excel.

Isinyathelo sesi-2: Hlaziya imiphumela yesampula yezibalo ku-Excel

Manje njengoba idatha yakho ihlelwe kuthebula, sekuyisikhathi sokuhlaziya izibalo. I-Excel inikeza imisebenzi eminingi yezibalo, efana ne-"AVERAGE", "MEDIAN" kanye "MODE", ekuvumela ukubala izilinganiso zokuthambekela okumaphakathi. Ungasebenzisa futhi imisebenzi efana ne-"VAR", "STDEV" kanye ne-"COVARIANCE" ukuze ubale izilinganiso zokuhlakazeka nokuhlangana.

Ngaphezu kwemisebenzi eyisisekelo, i-Excel iphinde ikuvumela ukuthi wenze ukuhlaziya okuthuthuke kakhulu, njengokuhlehla komugqa kanye nokuhlaziywa kokuhluka (ANOVA). Lawa mathuluzi azokusiza ukuthi uhlole ubudlelwano phakathi kwezinto eziguquguqukayo futhi unqume ukuthi ukhona yini umehluko omkhulu phakathi kwamaqembu edatha.

⁢Isinyathelo sesi-3: Bonisa ngokubukeka imiphumela yesampula yezibalo ku-Excel

Uma usuwenze ukuhlaziya kwezibalo, kubalulekile ukwethula imiphumela ngendlela ebukekayo⁢ ekhangayo neqondakalayo. I-Excel inikezela ngebanga elibanzi⁢ lamashadi namagrafu, njengamabha, imigqa, ama-scatter, nezingcezu, ezikuvumela ukuthi umelele idatha ngokunembile.

Ukudala ibha noma ishadi lomugqa ku-Excel, vele ukhethe idatha ofuna ukuyimela bese uchofoza ithebhu ethi "Faka". Okulandelayo, khetha uhlobo lweshadi⁤ ofuna ukukudala futhi wenze ngendlela oyifisayo ukubukeka kwalo ngokuvumelana nezintandokazi zakho.

Ngaphezu kwamashadi, i-Excel iphinde inikeze amathuluzi okudala amathebula namashadi aguquguqukayo, akuvumela ukuthi uhlunge futhi ufingqe idatha ngokuhlanganyela. Lawa mathuluzi awusizo ikakhulukazi uma unedatha enkulu, eyinkimbinkimbi futhi ufuna ukuyibona ngeso lengqondo ngendlela enemininingwane eminingi futhi evumelana nezimo.

Kafushane, ukuthatha isampula yezibalo ku-Excel, ukuhlaziya imiphumela nokuyimela ngokubukeka kuwumsebenzi olula nonamandla. Ngenhlanganisela efanele yezici namathuluzi,⁣ uzokwazi ukwenza ukuhlaziya kwezibalo okuyinkimbinkimbi futhi wethule ⁤imiphumela ngokucacile futhi ⁤ngokufingqiwe.