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KUADRAT
#include
void main()
{
int xi[7];
float yi[7];
double xiyi;
int xi2;
int x;
int sigma_xi;
double xi_rata2;
double sigma_yi;
double yi_rata2;
double sigmaxiyi;
double sigma_xi2;
double a1;
double a0;
int n=7;
double hasil1;
double hasil2;
xi[0]=3;
xi[1]=5;
xi[2]=12;
xi[3]=12;
xi[4]=35;
xi[5]=6;
xi[6]=11;
yi[0]=22.0;
yi[1]=23.5;
yi[2]=12.0;
yi[3]=24.4;
yi[4]=13.5;
yi[5]=2.5;
yi[6]=5.5;
;
cout<
cout<<"x dan y adalah"< cout<
for (x=0;x<=6;x++) { cout<<"xi = "<<
}
cout< sigma_xi = xi[0]+xi[1]+xi[2]+xi[3]+xi[4]+xi[5]+xi[6];
cout<<"sigma x = "<< cout< xi_rata2= sigma_xi/n;
cout<<"x rata2 = "<<
for (x=0;x<=6;x++) { cout<<"y = "<< }
sigma_yi = yi[0]+yi[1]+yi[2]+yi[3]+yi[4]+yi[5]+yi[6];
cout<<"sigma y = "<<
yi_rata2= sigma_yi/n;
cout<<"y rata2 = "<<
cout<<"nilai x.y"< for (x=0;x<=6;x++) {
xiyi=xi[x]*yi[x];
cout<<"x.y ="<<
}
cout< cout<<"nilai sigma x.y"< sigmaxiyi = xi[0]*yi[0]+xi[1]*yi[2]+xi[3]*yi[4]+xi[5]*yi[6]
+xi[4]*yi[4]+xi[5]*yi[5]+xi[6]*yi[6];
cout<<"sigma x.y ="<<
cout< cout<<"nilai x kuadrat"< for (x=0;x<=6;x++)
{
xi2=xi[x]*xi[x];
cout<<"x2 ="<< }
cout< cout<<"nilai sigma x kuadrat"< sigma_xi2 = xi[0]*xi[0]+xi[1]*xi[2]+xi[3]*xi[4]+xi[5]*xi[6]
+xi[4]*xi[4]+xi[5]*xi[5]+xi[6]*xi[6];
cout<<"sigma xy = "<<
a1= ((n*sigmaxiyi)-(sigma_xi*sigma_yi))
/((n*sigma_xi2)-(sigma_xi*sigma_xi));
cout<< "nilai a1"< cout< cout<<"a1 = "<<
a0= (yi_rata2)-(a1*xi_rata2);
cout<<"nilai a0 adalah"< cout< cout<<"a0 = "<<
}
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