Coeficiente de determinación

28/04/10


Potrero ua y1 y-y1 (y-y)2
12 9 8.9344 0.0656 0.0043
9 7 7.0432 0.0432 0.0018
14 10 10.1952 0.1952 0.0381
6 5 5.152 0.152 0.0231
10 8 7.6736 0.3264 0.1065
∑x=51 ∑=39 ∑y1=38.9984 ∑y-y10.0016 ∑y-y1=0.1738



Y-Ỹ
Ỹ= ∑Y=39
N Y- Ỹ=9-7.8


Y- Ỹ (Y- Ỹ)2 ∑(Y-Y)2= 0.1738/5=0.0347

1.2 1.44 S2=0.0347
-0.8 0.64 S2=0.1862
2.2 4.84
-2.8 7.84
0.2 0.04
∑Y- Ỹ=0.3 ∑(Y- Ỹ)2=14.8



S2 =∑(Y- Ỹ)2
N

S2=014.8= √2.96
5
S=1.7204


VARIACION TOTAL

R2= ∑(Y- Ỹ)2- ∑(Y-Y)2
∑ (Y- Ỹ)2


R=14.8-0.1738=0.9882
14.8