#include <iostream>#include <iomanip>#include <fstream>using namespace std;int main () { ifstream in ("data.txt"); int i = 0, ranges [11] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; double item, sum = 0, vsum = 0, min = 11, max = 0; for (;;) { if(in >> item) ++i; else break; sum += item; vsum += item * item; if (item < min) min = item; if (item > max) max = item; ++ranges[(int)item]; } vsum -= sum * sum / i; cout << setprecision(15); cout << "Mean of the values is: " << sum / i << endl << "Variance of the values is: " << vsum / i << endl << "Maximum of the values is: " << max << endl << "Minimum of the values is: " << min << endl << endl; for (int c = 0; c < 11; ++c) cout << "Number of values in interval [" << setw(2) << c << ", " << setw(2) << (c+1) << "): " << ranges[c] << endl; system("pause"); return 0;}