Ukuchezuka okujwayelekile okuhlobene kubizwa nangokuthi ifomula yokuchezuka okujwayelekile kwephesenti, i isilinganiso sokuchezuka esisitshela ukuthi izinombolo ezihlukene kusethi yedatha ethile zihlakazeka kanjani kuncazelo. ...Uma umkhiqizo wehla, izinombolo ziseduze kunesilinganiso sawo.
Hereof, Iyini i-RSD kukhemistri? Itiye ukuchezuka okujwayelekile okuhlobene (i-RSD noma i-%RSD) inani eliphelele le-coefficient yokuhluka. … Ukuchezuka okujwayelekile okuhlobene kusetshenziswa kakhulu kukhemistri yokuhlaziya ukuveza ukunemba nokuphindaphinda kokuhlolwa.
Kubalwa kanjani ukuchezuka?
- Ifomula yokuchezuka ejwayelekile ingabukeka iyindida, kodwa iyoba nengqondo ngemuva kokuthi siyiphule. …
- Isinyathelo 1: Thola okushiwo.
- Isinyathelo 2: Ngephoyinti ngalinye ledatha, thola isikwele sebanga laso kuye encazelweni.
- Isinyathelo 3: Hlanganisa amanani asuka kusinyathelo 2.
- Isinyathelo 4: Hlukanisa ngenombolo yamaphoyinti wedatha.
- Isinyathelo 5: Thatha impande eyisikwele.
Ukwengeza Kuyini ukuchezuka okuhlobene nezibalo? Ukuchezuka Okuhlobene
Ukuchezuka okumaphakathi okuhlobene, d, njengokuchezuka okujwayelekile, kuyasiza ukunquma ukuthi idatha iqoqwana kanjani mayelana nencazelo. …Bala ukuchezuka, d=|xi – ˉx|, yedathamu ngayinye. Bala isilinganiso salokhu kuchezuka. Hlukanisa leso silinganiso sokuchezuka usebenzisa idatha.
Ubala kanjani ukuhluka okuhlobene? Umehluko ohlobene ngu umehluko, ohlukaniswe inani eliphelele lencazelo (s2/|x̄|). Ungaphinda uphinde umphumela ngo-100 ukuze uthole iphesenti le-RV.
Ubala kanjani ukuchezuka okujwayelekile kanye ne-RSD?
Ukuchezuka okujwayelekile okuhlobene (RSD) kuvame ukuba lula kakhulu izikhathi. Ivezwa ngamaphesenti futhi injalo kutholwe ngokuphindaphinda ukuchezuka okujwayelekile ngo-100 nokuhlukanisa lo mkhiqizo ngokwesilinganiso.
Ubala kanjani ukunemba okuhlobene? Ifomula yokunemba ehlobene ithi:st/t. Ivamise ukunikezwa njengesilinganiso (isb. 5/8), noma njengephesenti. Ukunemba okuhlobene kungasetshenziswa futhi ukubonisa isikhawu sokuzithemba sesilinganiso. Isibonelo, uma i-RP ingu-10% futhi ukulinganisa kwakho kungu-220 degrees, khona-ke isikhawu sokuzithemba singama-degree angu-220 ±22 degrees.
Liyini inani elihle le-RSD? Umkhawulo "ojwayelekile" owamukelekayo wokuphindaphinda ngu 2% (kodwa kuncike ezingeni lokuhlushwa le-analyte). Mayelana ne-CV% (i-coefficient of variation) uqinisile, iyafana ne-RSD (ukuchezuka okujwayelekile okuhlobene).
Iyini ifomula yokuphambuka ejwayelekile ngesibonelo?
Isibonelo sefomula yokuchezuka okujwayelekile:
Ukukhipha isilinganiso enombolweni ngayinye, uthola (1 – 4) = –3, (3 – 4) = –1, (5 – 4) = +1, kanye (7 – 4) = +3. Uma uphinda umphumela ngamunye wale miphumela, uthola u-9, 1, 1, no-9. Uma uhlanganisa lezi, isamba singu-20. … Ukuchezuka okujwayelekile kwale miphumela emine yemibuzo amaphuzu angu-2.58.
Futhi Siyini isibonelo sokuchezuka? Ukuchezuka okujwayelekile ikala ukusabalala kwedatha mayelana nevelu emaphakathi. … Isibonelo, incazelo yalokhu okubili okulandelayo iyafana: 15, 15, 15, 14, 16 kanye no 2, 7, 14, 22, 30. Nokho, okwesibili kusobala kakhulu. Uma isethi inokuchezuka okujwayelekile okuphansi, amanani awasakazwa kakhulu.
Ithini indlela yokuchezuka ejwayelekile?
Ukusuka emgomeni kuyinto impande yesikwele ephozithivu yokuhluka. Ukuchezuka okujwayelekile kungenye yezindlela eziyisisekelo zokuhlaziya izibalo. ...Uma sithola ukuchezuka okujwayelekile okuphansi kusho ukuthi amanani avame ukusondela encazelweni kuyilapho ukuchezuka okusezingeni eliphezulu kusitshela ukuthi amanani akude nevelu emaphakathi.
Ulithola kanjani ibanga elihlobene? Susa inani eliphansi kweliphezulu ukubala ububanzi. Kulesi sibonelo, ububanzi bungu-$41.12 - $34.68 = $6.44. Hlukanisa ububanzi ngenani elimaphakathi, bese uphindaphinda umphumela ngo-100 ukuze ubale ububanzi bamaphesenti ahlobene.
Ithini ifomula yokuchezuka okujwayelekile kwedatha eqoqwe?
Thola ukuchezuka okujwayelekile usebenzisa ifomula 1 N ∑ fi ( xi − x ˉ ) 2 frac{1}{N}sqrt{sum f_{i}(x_{i}-bar{x}))^{2}} N1∑fi(xi−xˉ)2 .
Ukuthola kanjani ukuchezuka kwe-quartile kanye ne-coefficient yokuchezuka kwe-quartile?
Kuyini Ukuphambuka Kwe-Quartile?
- Ukuchezuka kweQuartile = (Ikota Yesithathu - Ikwata Yokuqala) / 2.
- Ukuchezuka kweQuartile =(Q 3 -Q 1 ) / 2. Ukuchezuka kwequartile kungabalwa kukho kokubili idatha eqoqwe kanye nedatha engaqoqiwe. …
- I-Coefficient of Quartile Deviation = (Q 3 -Q 1 ) / (Q 3 +Q 1 ) Ungakuthola Kanjani Ukuphambuka Kwe-Quartile? …
- Izihloko Ezihlobene.
Kuyini ukuchezuka okujwayelekile kwehlukaniswe ngokwesilinganiso? I-coefficient of variation (CV) isilinganiso sokuhlukahluka okuhlobene. Isilinganiso sokuchezuka okujwayelekile kuya kwencazelo (isilinganiso). Isibonelo, isisho esithi “Ukuchezuka okujwayelekile kungu-15% wencazelo” iyi-CV.
Imaphi amayunithi ukuchezuka okujwayelekile kuwo? Ukuchezuka okujwayelekile kuvezwa ngo amayunithi afanayo namanani okuqala (isb, imizuzu noma amamitha). Ukwehluka kuvezwa ngamayunithi amakhulu kakhulu (isb, amamitha ayisikwele).
Kuyini ukunemba kwephesenti elihlobene?
Ukunemba okuhlobene: - Iveza ukungaqiniseki njengengxenye yenani lenzalo. Isibonelo sethu sokuvama kwama-20% ± 10%, ukungaqiniseki okuhlobene kungu-10% wama-20% alingana no-2%.
Ingabe ukuchezuka okujwayelekile kulinganisa ukunemba? Itiye ukuchezuka okujwayelekile kulinganisa ukunemba kohlolo; okungukuthi, izilinganiso zomuntu ngamunye zisondelene kangakanani. (Ukuchezuka okujwayelekile akulinganisi ukuchema, okudinga ukuqhathaniswa kwemiphumela yakho nenani eliqondiwe njengeqembu lakho lontanga.)
Ubala kanjani ukunemba nokungaqiniseki?
Ingabe i-RSD inemba noma inemba? Itiye I-RSD ikala ukunemba kwesilinganiso semiphumela yakho. …Uma kuba kuncane ukuchezuka okujwayelekile okulinganiselwe kubalwa, yilapho isilinganiso sinembe kakhulu. Ivame ukusetshenziswa ku-chemistry, futhi kulula ukubala.
Ingabe ukuchezuka kwezinga eliphezulu okuhlobene kuhle noma kubi?
Lokhu kusho ukuthi ukusabalalisa okune-coefficient yokuhluka okuphezulu kuno-1 kuthathwa njengokuhluka okuphezulu kuyilapho lezo ezine-CV engaphansi kuka-1 zibhekwa njengokuhluka okuphansi. Khumbula, ukuchezuka okujwayelekile “akukuhle” noma “kubi”. … Ayikho into efana nokuchezuka okuhle noma okuphezulu okujwayelekile.
Uyibala kanjani i-RSD ku-Powerpoint? Ukuchezuka Okuhlobene
- Bala isilinganiso, ˉx, ngayo yonke idatha esezingeni eliphezulu.
- Bala ukuchezuka, d=|x i – ˉx|, kudathamu ngayinye.
- Bala isilinganiso salokhu kuchezuka.
- Hlukanisa leso silinganiso sokuchezuka usebenzisa idatha. Le nombolo ngokuvamile ichazwa njengezingxenye eziyinkulungwane (ppt).