Statistika kordamisküsimused vene keeles
28
47. . ( ) -
- .
,
.
.
- .
,
.
yx= a + bx ;
yx = a + b/x (); yx = a + bx + cx² ( )
, , ,
.
, , ,
.
b yx = a + bx
, ,
.
.
an + bSx = Sy
aSx + bS x² = Sxy ,
yx 2 - xxy
a= = y - bx
nx 2 - (x) 2 ,
nxy - xy
b=
nx 2 - ( x ) 2
NB!! . yx= ayx + byxx,
,
xy = axy + bxyy,
.
48. - ( ) -
. ,
, .. .
.
,
.
, .
,
, .. .
byz = 5.5 ,
5,5 . .
.
, .
: ,
?
, ,
: yxz = ao + a1x + a2z
:
a 0 + a1x + a 2z = y
a 0x + a1x 2 + a 2xz = yx
a 0z + a1xz + a 2z 2 = yz
annaabi.ee 
