-1 .
- , - - . , , . 3 ., - + .
-, .
- ., - . () ()
:− ;− ( ). , : 1. ( , -) 2. ( , -, ) 3. ( , , ) 4. ( - - - - / ) 5. 6. ( , , (. )).
. ., . . . . . . , . . , , .
-2
-, / (-) - () . - - - (.. ,), - , .. - - (- ) -.
1. =+ (-., ,-). >0- , <0 . , . - . - - . - 1 -.
2. =++2 , /.
3. =+/ -
4. =a*( = )
5. =* b -, -, % 1%
6. =+
: (=+/,z=1/x => =+z); (=*b,Y=lny,A=lna,X=lnx, Y=A+bX, y=e(A+b*lnx), =eA*b)
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-3
()/ - , , - - . SS=(i-i)2->, =+ f(a,b)=(-(+))2-> , . 0. df/da=-2(i--i)=0, df/db=-2 (i--i)i=0 - - 1.n*a+b*sumxi=sumyi /2.a*sumxi+b*sumxi2=sumyi*xi
- : b=( (*) y* )/ Gx2, (Gx2= (x2) ( x)2), . =(y)-*(x). b rxy( ) => b = rxy * (Gx2/Gy2) - , .. .
: (=+/,z=1/x => =+z); (=*b,Y=lny,A=lna,X=lnx, Y=A+bX, y=e(A+b*lnx), =eA*b)