I-quartile yokuqala (Q1) ichazwa njengenombolo ephakathi phakathi kwenombolo encane kakhulu (ubuncane) kanye ne-median yesethi yedatha. …I-quartile yesithathu (Q3) inani eliphakathi nendawo umdidiyeli kanye nenani eliphezulu (eliphezulu) lesethi yedatha.
Hereof, Uyithola kanjani i-quartile yoku-1 neyesi-3? Lapho isethi yokubuka ihlelwa ngendlela ekhuphukayo ama-quartiles amelelwa ngokuthi,
- Iquartile Yokuqala(Q1) = ((n + 1)/4) t h Ithemu.
- Iquartile Yesibili(Q2) = ((n + 1)/2) t h Ithemu.
- Iquartile Yesithathu(Q3) = (3(n + 1)/4) t h Ithemu.
I-quartile yoku-1 neyesi-3 isitshelani? Nokho, i-median isitshela isikhungo sedatha, kuyilapho i-quartiles yokuqala neyesithathu zisitshela mayelana nendlela ukusabalalisa okuphakathi kuka-50% wesethi yedatha. Okokugcina, amanani amancane naphezulu asitshela ngamavelu adlulele kakhulu kusethi yedatha.
Ukwengeza Ingabe ikhona i-quartile 4? I-quartile yesine: izinombolo eziphakeme kakhulu ezingama-25%.
Uyithola kanjani i-quartile yesithathu? I-Quartile yesithathu ye-75th Percentile (Q3) inikezwa ngokuthi: I-Third Quartile(Q3)=(3(n+1)/4)th Ithemu eyaziwa nangokuthi i-quartile engenhla. Ububanzi be-interquartile bubalwa njengokuthi: I-Upper Quartile - I-Quartile Ephansi.
Mangaki ama-quartiles akhona?
Ama-quartiles ahlukanisa isethi yonke ibe izingxenye ezine ezilinganayo. Ngakho, zikhona izingxenye ezintathu, eyokuqala, eyesibili neyesithathu imelwe ngu-Q1,Q2 kanye Q3Ngokulandelana.
Yini elingana no-D5? D5 = Inani lika-5 (30 + 1) / 10. D5 = Inani 15.5th isikhundla, uhhafu phakathi kwamaphuzu angama-76 no-78. Amaphesenti angama-50 wamaphuzu awe ngaphansi kwama-77.
Ingabe ama-quartiles angaba amadesimali? 5 (ngoba i-Q2 ingu-50%) izikhathi zenani lamanani kudathasethi yakho. Lena inqubo efanayo ongayisebenzisa kunoma iyiphi i-quartile noma i-percentile. Lena inombolo ONKE (hhayi idesimali).
Uyithola kanjani i-quartile yokuqala?
Ukuthola i-quartile yokuqala, sisebenzisa lezi zinyathelo ezilandelayo:
- Qiniseka ukuthi uhlela amaphoyinti edatha ukusuka kokuncane kuye kokukhulu kakhulu.
- Hlukanisa idatha esethwe izingxenye ezimbili ezilinganayo ngokuthola i-median yayo yonke isethi yedatha. …
- Thatha i-median yengxenye engezansi yesethi yedatha.
Futhi Iyini i-quartile yokuqala? I-quartile ephansi, noma i-quartile yokuqala (Q1), i inani okutholakala ngaphansi kwalo u-25% wamaphoyinti edatha uma ehlelwa ngokulandelana okwandayo. I-quartile ephezulu, noma i-quartile yesithathu (Q3), inani okutholakala ngaphansi kwalo u-75% wamaphoyinti edatha lapho ehlelwa ngokulandelana okwandayo.
Uyithola kanjani i-quartile yokuqala?
Ungabala kanjani ama-Quartiles
- Oda idatha yakho isethwe kusuka kumanani aphansi kuya kwamanani aphakeme kakhulu.
- Thola ophakathi. Lona yi-quartile yesibili Q 2 .
- Ku-Q 2 hlukanisa idatha e-odiwe yaba izingxenye ezimbili.
- I-quartile ephansi Q 1 ungumlingani wengxenye engezansi yedatha.
- I-quartile ephezulu Q 3 maphakathi nengxenye ephezulu yedatha.
Iyini izibalo ze-quartile? Ama-quartiles anjalo amanani ahlukanisa uhlu lwezinombolo ngamakota: Beka uhlu lwezinombolo ngokulandelana. Bese usika uhlu lube izingxenye ezine ezilinganayo.
Kuyini ukuchezuka kwe-interquartile?
Incazelo eyamukelwe yokuchezuka kwe-Quartile ithi umehluko phakathi kwe-quartile yokuqala ne-quartile yesithathu kuthebula lokusabalalisa imvamisa. Lo mehluko waziwa ngokuthi yi-interquartile range. … Uma umehluko uhlukaniswa ngokubili, waziwa ngokuthi ukuchezuka kwe-quartile noma i-semi-inter-quartile range.
Ingabe i-Q3 D5 ne-P50 ziyefana?
Yebo, Q2, D5, kanye P50 bayalingana.
Iyini i-decile yesi-7? LESIBILI - idecile yesikhombisa (noma I-70th percentile)
Uyithola kanjani i-Q2 ne-q4? Ifomula yequartile Ephansi (Q1) = N + 1 iphindaphindwe ngokuthi (1) ihlukaniswe ngokuthi (4) Ifomula yequartile ePhakathi (Q2) = N + 1 iphindwe ngo-(2) ihlukaniswe ngo-(4) Ifomula ye-Upper quartile (Q3) = N + 1 iphindaphindwe ngokuthi (3) ihlukaniswe ngokuthi (4) Ifomula yobubanzi be-Interquartile = Q3 (i-quartile ephezulu) - Q1 (i-quartile ephansi)
Ingabe sihlanganisa ama-quartiles?
Okwequartile Ephansi:
Uma L1 iyinombolo ephelele, iquartile ephansi iphakathi nendawo phakathi kuka-L1-th value kanye nelandelayo. Uma L1 akuyona inombolo ephelele, iguqule ngokuhlanganisa ifike kunamba eseduze. Inani kuleso simo yi-quartile ephansi.
Uyithola kanjani i-quartile yokuqala ngesandla? Ama-quartiles amanani ahlukanisa uhlu lwezinombolo ngamakota: Beka uhlu lwezinombolo ngokulandelana. Bese usika uhlu lube izingxenye ezine ezilinganayo.
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Ibhokisi kanye ne-Whisker Plot
- I-Quartile 1 (Q1) = (4 + 4) / 2 = 4.
- I-Quartile 2 (Q2) = (10 + 11) / 2 = 10.5.
- I-Quartile 3 (Q3) = (14 + 16) / 2 = 15.
Iyini i-quartile yokuqala?
I-quartile ephansi, noma i-quartile yokuqala (Q1), i inani okutholakala ngaphansi kwalo u-25% wamaphoyinti edatha uma ehlelwa ngokulandelana okwandayo.
Ubala kanjani izibonelo ze-quartile? Ama-quartiles amanani ahlukanisa uhlu lwezinombolo ngamakota: Beka uhlu lwezinombolo ngokulandelana. Bese usika uhlu lube izingxenye ezine ezilinganayo. I-Quartile iku-"cuts"
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Isibonelo: 1, 3, 3, 4, 5, 6, 6, 7, 8, 8
- I-Quartile 1 (Q1) = 3.
- I-Quartile 2 (Q2) = 5.5.
- I-Quartile 3 (Q3) = 7.
Uyithola kanjani i-Quantiles?
Ama-quantiles amaphuzu ekusabalaliseni ahlobene ne-oda lezinga lamanani kulokho kusatshalaliswa. Ukuze uthole isampula, ungathola noma iyiphi i-quantile ngokuhlunga isampula. Inani eliphakathi lesampula elihlungiwe (i-quantile emaphakathi, i-50th percentile) laziwa njenge-median. Imikhawulo ngamavelu amancane naphezulu.
Ingakanani inani le-quartile yesithathu? I-quartile yesithathu (noma i-quartile engenhla), i-Q3, inenani lika-f elilinganayo ukuze 0.75. I-interquartile range, i-IQR, ichazwa njenge-Q3-Q1.
Uwabala kanjani ama-Quantiles?
Uma sinenani elilinganayo lamaphoyinti, sikhetha inani eliphakathi nendawo phakathi kwamanani amabili amaphakathi. Ku-median, isibonelo, i-quantile engu-0.5, i = q ( n+1) = izikhathi ezingu-0.5 (57+1) = 29, ukubhekwa kwe-29 njengangaphambili. 4.50 + (4.56 - 4.50) izikhathi (43.5 - 43) = 4.53.
Uwaxazulula kanjani ama-quartiles?