Курсовая работа: Система обработки научных данных

break;

}

case 3:

{ cout<<"Enter the total no of data";

cin>>nn;

char s[20],s4[20];

cout<<" X denotes ";

cin>>s;

cout<<" Frequency denotes ";

cin>>s4;

for(int i=0;i<nn;i++)

{

cout<<"X"<<i+1<<" =";

cin>>a[i];

cout<<"Freq"<<i+1<<" =";

cin>>b[i];

s3 = s3+b[i];

}

cout<<"The sum of f = "<<s3<<endl;

for(i=0;i<nn;i++)

{

s1 =s1+ (a[i]*b[i]);

}

cout<<"The sum of f*x = "<<s1<<endl;

mean = s1/s3;

for(i=0;i<nn;i++)

{

c[i] = pow((a[i]-mean),2);

s2 = s2 +(c[i]*b[i]);