Ukuchezuka Okujwayelekile Okuhlanganisiwe = sqrt(((n1-1)*s1*s1 + (n2-1)*s2*s2 + n1 * n2 / (n1 + n2) * (m1*m1 + m2*m2 – 2 * m1 * m2)) / (n1 + n2 -1)); Uma kuzohlanganiswa amaqembu angaphezu kwama-2, amaqembu amabili okuqala ahlanganiswa kuqala, imiphumela ibe isihlanganiswa neqembu lesithathu, bese kulandela i-sequentiaaly neqembu ngalinye elilandelayo.
Ngokufanayo, Iyiphi ifomula esetshenziselwa ukubala incazelo ye-arithmetic ehlanganisiwe? Incazelo ehlanganisiwe: u02c9x12=N1u22c5u02c9x1+N2u22c5u02c9x2N1+N2.
Kusho ukuthini ukuhlanganisa ezibalweni? Kuhlanganiswe kusho ukuwangeza, kodwa ama-coefficient awo kuphela. Ukuhlanganisa amatemu anjengamatemu kubaluleke kakhulu ezibalweni, ngoba kukuvumela ukuthi wenze izinkulumo zibe lula ukuze zilawuleke. Isibonelo, kuyasiza ngempela uma wengeza noma ukhipha ama-polynomials!
Ubala kanjani ukuchezuka okujwayelekile okuhlanganisiwe nokuhlanganisiwe? Ukuchezuka okujwayelekile okuhlanganisiwe kwe-SC kungabalwa ngokuthatha impande yesikwele ye-Sc2. Isibonelo: Eqenjini labasebenzi besilisa abangu-50 isilinganiso kanye nokuphambuka okujwayelekile komholo wabo wansuku zonke amadola angama-63 namadola angu-9 ngokulandelana. Eqenjini labasebenzi besifazane abangama-40 lawa manani angamadola angama-54 namadola ayi-6 ngokulandelana.
Okwesibili Uyithola kanjani incazelo ehlanganisiwe nokuhluka?
Ngingayithola kuphi i-Hm ehlanganisiwe?
Ikona ibalwa ngokuhlukanisa inombolo yokuqaphela ngokuphindaphinda inombolo ngayinye ochungechungeni. Ngakho-ke, incazelo ye-harmonic iwukuphindaphinda kwe-arithmetic mean of the reciprocals. Incazelo ye-harmonic ye-1,4, no-4 ithi: 3 ( 1 1 + 1 4 + 1 4 ) = 3 1.
bese Ukuthola kanjani ukuchezuka okujwayelekile okuhlanganisiwe kwamaqembu amabili? Ngisho nalapho sikhipha okuguquguqukayo okubili okungahleliwe, sisangeza ukuhluka kwazo; ukususa okuguquguqukayo okubili kukhulisa ukuhlukahluka okuphelele emiphumeleni. Singathola ukuchezuka okujwayelekile kokusabalalisa okuhlanganisiwe ngokuthi ukuthatha impande yesikwele yokuhlukahluka okuhlanganisiwe.
Ingabe kuhlangene kusho ukwengeza noma ukuphindaphinda? Ukuze uhlanganise amagama afanayo, engeza i- ama-coefficients bese uphindaphinda isamba ngokuguquguquka okujwayelekile.
Uyithola kanjani incazelo yezindlela ezimbili?
Kulula ukubala: hlanganisa zonke izinombolo, bese uhlukanisa ngokuthi zingaki izinombolo. Ngamanye amazwi kunjalo isamba esihlukaniswe ngokubala.
Iyiphi indlela edingekayo ukuze uthole ukuchezuka okujwayelekile okuhlanganisiwe? Incazelo ye-arithmetic ehlanganisiwe ingabalwa uma sazi incazelo nenani lezinto eqenjini ngalinye ledatha. 1, 2, , σ 1, σ 2 kukhona ukuchezuka okumaphakathi nokujwayelekile kwamasethi edatha amabili ano-n 1 futhi n 2 njengenani lama-elementi ngokulandelanayo.
Iyini ifomula ye-harmonic ehlanganisiwe?
I-harmonic mean iwuhlobo lwesilinganiso samanani. Ibalwa ngokuhlukanisa inani lokubonwayo ngokuphindaphinda inombolo ngayinye ochungechungeni. Ngakho-ke, incazelo ye-harmonic iwukuphindaphinda kwe-arithmetic mean of the reciprocals. Incazelo ye-harmonic ka-1, 4, no-4 ithi: 3 (1 1 + 1 4 + 1 4) = 3 1 .
Iyini incazelo ye-harmonic ehlanganisiwe? I-Harmonic isho uhlobo lwesilinganiso esinjalo ibalwa ngokuhlukanisa inani lamanani ochungechungeni lwedatha ngesamba se-reciprocals (1/x_i) yenani ngalinye ochungechungeni lwedatha. … Incazelo ye-harmonic ivame ukusetshenziswa ukubala isilinganiso sezilinganiso noma izilinganiso.
Buyini ubudlelwano phakathi kwe-AM GM kanye ne-Hm?
Ubudlelwano phakathi kwe-AM GM HM bungamelwa ifomula AM × HM = GM2. Lapha umkhiqizo we-arithmetic mean(AM) kanye nencazelo ye-harmonic(HM) ulingana nesikwele sencazelo yejometri(GM).
Uyithola kanjani incazelo ye-harmonic ehlanganisiwe?
Ifomula evamile yokubala incazelo ye-harmonic yile:
- Incazelo ye-Harmonic = n / (∑1/x_i)
- I-Harmonic Mean Weighted = (∑w_i ) / (∑w_i/x_i)
- I-P/E (Inkomba) = (0.4+0.6) / (0.4/50 + 0.6/4) = 6.33.
- I-P/E (Inkomba) = 0.4×50 + 0.6×4 = 22.4.
Ukwengeza kanjani ukuchezuka okuqondile nokujwayelekile? Isilinganiso E(X+Y) silingana nesamba sezindlela E(X) kanye no-E(Y), okungukuthi, esimweni sakho 2+3.8=5.8. Ukuchezuka okujwayelekile kuyimpande eyisikwele yokuhluka kuka-Var(X+Y)=Var(X)+Var(Y)+2I-Cov(X,Y). Ukuchezuka okujwayelekile kubalwa ngokwehlukile uma isampula lakho lihambisana naso sonke isibalo sabantu noma cha.
Ingabe kuhlangene kusho ukwengeza?
Ingabe ukuphindaphinda okuhlanganisiwe?
Iyini imisebenzi ehlanganisiwe? Yilawo lapho kuvela khona imisebenzi ehlukahlukene ye-arithmetic: ukungeza, ukususa, ukuphindaphinda nokuhlukanisa.
Uyithola kanjani indlela yezindlela? Mane ufingqe izindlela zawo wonke amasampula akho kanye hlukanisa ngenani lezindlela.
Ubala kanjani iholo elimaphakathi elihlanganisiwe?
Isilinganiso samaholo onyaka siyabalwa ngokuhlukanisa isamba samaholo akhokhelwa umqashi kubasebenzi ngonyaka okhokhiswa intela (ibhokisi lesi-5 lamaholo e-W-2) ngenani lama-FTEs onyaka.. Umphumela wehliselwa ku-$1,000 eseduze. Isibonelo: Ngonyaka wentela ka-2010, umqashi ukhokha u-$224,000 emholweni futhi unama-FTEs ayi-10.
Ithini incazelo ye-harmonically? 1.a. Ya noma ehlobene nokuzwana. b. Ukujabulisa indlebe: imiphumela ye-harmonic orchestral.
Uyithola kanjani isamba sokubuyelana?
Uyithola kanjani incazelo ye-quadratic? Incazelo ye-quadratic (ebuye ibizwe ngokuthi impande isho isikwele*) iwuhlobo lwesilinganiso.
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Ikala ubukhulu obuphelele besethi yezinombolo, futhi ibalwa ngokuthi:
- Squaring inombolo ngayinye,
- Ukuthola incazelo yalezi zikwele,
- Ithatha impande eyisikwele yaleso silinganiso.
Ubala kanjani uchungechunge lwe-harmonic?
Uchungechunge lwe-harmonic luyi isamba sisuka ku-n = 1 siye ku-infinity ngamatemu 1/n. Uma ubhala amagama ambalwa okuqala, uchungechunge lwenzeka kanje: 1 + 1/2 + 1/3 + 1/4 + 1/5 +. . .njll. Njengoba u-n ethambekele kokungapheli, u-1/n uthambekele ku-0.
Ithini i-harmonic yezinombolo 2 3 5? I-Harmonic Mean = I-Harmonic Mean = 2.9 (approx) Ngakho-ke, i-Harmonic Mean yalezi zinombolo ingu-2.9!
Kuyini ukuhlobana phakathi kwe-arithmetic mean kanye nencazelo yejometri?
U-A no-G mababe izindlela ze-Arithmetic kanye ne-Geometric Means ngokulandelana kwezinombolo eziphozithizithi ezimbili u-m no-n. Khona-ke, sinakho A = m + n/2 kanye no-G = ±√mn. Njengoba, u-m no-n kuyizinombolo eziphozithivu, yingakho kusobala ukuthi u-A > G lapho u-G = -√mn.
Buyini ubudlelwano phakathi kwe-AM ne-GM Class 11?
I-AM noma i-Arithmetic Mean isho noma isilinganiso sesethi yezinombolo ebalwa ngokwengeza wonke amagama kusethi ye izinombolo kanye nokuhlukanisa isamba ngenani eliphelele lamatemu. I-GM noma i-Geometric Mean inani elimaphakathi noma igama elimaphakathi kusethi yezinombolo ekuqhubekeleni phambili kwejometri.
Iyini ifomula yokubhala ye-AM GM kanye ne-HM futhi? Makube nezinombolo ezimbili u-a no-b, a, b > 0. bese kuba ngu-AM = a+b/2 , GM =ab, HM=2ab/a+b.