1.) C++
#include <iostream>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int main(int argc, char** argv) {
int n,i;
float num[10], sum, average;
cout<<" masukan data : ";
cin>>n;
for(i=1;i<=n;++i){
cout<<endl<<i+1<<"masukan no : ";
cin>>num[i];
sum+=num[i];
}
cout<<endl<<"sum = "<<sum;
average=sum/n;
cout<<endl<<"average = "<<average;
return 0;
}