# Stats | Solution

Programming Assignment

Some Statistical Analysis

Solution Below

OUTPUT FOR RUN #1:

#include <iostream>

#include <math.h>

using namespace std;

int main ( )

{

float A, B, C, D, E, F, G, sum, mean;

double variance, StandardDeviation;

cout << " I will give you the sum, mean, and standard deviation "<< "of any seven numbers." <<endl;

cout << "Type each number, followed by the enter key." <<endl <<endl;

// user input data

cout << "Number=?";

cin >> A;

cout << "Number=?";

cin >> B;

cout << "Number=?";

cin >> C;

cout << "Number=?";

cin >> D;

cout << "Number=?";

cin >> E;

cout << "Number=?";

cin >> F;

cout << "Number=?";

cin >> G;

// print out data

cout <<endl;

cout << " You entered :" <<endl;

cout << '\t' <<A<<endl;

cout << '\t' <<B<<endl;

cout << '\t' <<C<<endl;

cout << '\t' <<D<<endl;

cout << '\t' <<E<<endl;

cout << '\t' <<F<<endl;

cout << '\t' <<G<<endl;

// calculate the sum

sum = (A+B+C+D+E+F+G);

cout << "the sum is: " <<sum<<endl;

// calculate the mean

mean = sum/7;

cout << "the mean is: " <<mean<<endl;

// calculate standard deviation

variance = ( (A-mean)*(A-mean)+ (B-mean)*(B-mean)+ (C-mean)*(C- mean)

+ (D-mean)*(D-mean)+ (E-mean)*(E-mean) +(F-mean)*(F-mean)

+ (G-mean)*(G-mean))/6;

StandardDeviation=sqrt(variance);

cout << " The standard deviation is " <<StandardDeviation <<endl << endl;

return 0;

} // end main

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