Isiqondiso kumsebenzisi

Imiphumela:
(xˆ
1
) Inani elisikiselwe lika-x
1
(xˆ
2
) Inani elisikiselwe lika-x
2
(yˆ) Inani elisikiselwe lika-y
Phawula
• xˆ, xˆ
1
, xˆ
2
no yˆ akuzona izimeleli. Kuyiziqondisi zohlobo oluthatha impikiswano
ngokushesha ngaphambi kwazo. Bheka esithi "Ukubala Amanani Asikiselwe"
mayelana nokwaziswa okubanzi.
Isibonelo 2: Ukufaka idatha yesimeleli esisodwa x = {1, 2, 2, 3, 3, 3, 4, 4,
5}, usebenzisa ikholomu elithi FREQ ukubalula inani lokuphindkea kwento
ngayinye ({x
n
; freq
n
} = {1;1, 2;2, 3;3, 4;2, 5;1}), kanye nokubala i-mean ne-
population standard deviation.
(SETUP) (STAT) (ON)
(STAT) (1-VAR)
1 2 3 4 5
1 2 3 2
(STAT) (Var) (x) 3
(STAT) (Var) (σ
x
)
1,154700538
Okumelela i-Mean ngu-3, bese Okumelela i-Population
Standard Deviation ngu-1,154700538
Isibonelo 3: Ukuze ubale ukubuyela emuva komugqa nokubuyela emuva
kokuhlangana kwe-logarithmic coefficients kwedatha elandelayo yezimeleli
ezihambisanayo kanye nokunquma ifomula yokubuyela emuva
kokuhlangana okunamandla kakhulu: (x; y) = (20; 3150), (110; 7310), (200;
8800), (290; 9310). Balula u-Fix 3 (izindawo zedesimali ezintathu) ukuze
uthole imiphumela.
(SETUP) (STAT) (OFF)
(SETUP) (Fix)
(STAT) (A+BX)
20 110 200 290
3150 7310 8800 9310
(STAT) (Reg) (r)
0,923
(STAT)
(Type) (ln X)
(STAT) (Reg) (r)
0,998
(STAT) (Reg) (A) -3857,984
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