, , . 17.2.
. 17.2.
, , ;] (. . 17.1). .
. -> . ( -^( ) . 17.3.
. 17.3. :
, . : . , X . ; "" , ?
(least-squares procedure).
(least-squares procedure)
, , .
, [ . . -, - (. 17.4)
, , ^£/.
. Y , " -, . 17.4, Y X, . , Y , , i .
,. , 1- [8]. ? /^ .
, /37 , (), :
,, = + bxf
. 17.4.
:
|
|
ӗ , , X , , | , OY, ė ( ).
, ^ X. /30 /3; Y. . , , . :
Y. Yt',, b /30 /3/, . b . . b [9]. b " () " :
rnv b = -
S2X
, OY , :
a^Y-bX
. 17.1 :
+ (8)(5) + (2)(2) + (18)(11) + (9)(9) + (17)(10) + (2)(2) = 917
£ X,.2 = 102 + 122 + 122 + 42 + 122 + 62+ i=i
+ 82 + 22+ 182+92 + 172+22=1350
, , :
X =9,333 F =6,583 12, b :
917-(12)(9,333)(6,583) b = - V ;) ' ' ; = 0,5897 1350-(12)(9,333)
a = F-fc7 = 6,583-(0,5897)(9,333) = 1,0793
, ( ) . , .