// This program computes the mean and deviation of 4 values entered by a user

#include <iostream>		// Access iostream header file
#include <iomanip>		// Access iomanip header file
#include <cmath>		// Access cmath header file
#include <string>		// Access string header file
#include <cfloat>		// Access float header file

using namespace std;

int main()
(
	// Variables
	int firstNumber;
	int secondNumber;
	int thirdNumber;
	int forthNumber;
	float mean;
	float deviationSummation;

	cout << fixed						// Set up fixed value
		<< setprecision(2);				// Output format


	cout <<"Enter the first whole number: " << endl;		// Prompt the user for the first number
	cin >> firstNumber;

	cout << "Enter the second whole number: " << endl;	// Prompt the user for the second number
	cin >> secondNumber;

	cout << "Enter the third whole number: " << endl;		// Prompt the user for the thirdt number
	cin >> thirdNumber;

	cout << "Enter the final whole number: " << endl;		// Prompt the user for the final number
	cin >> forthNumber;

	double mean = abs(firstNumber, secondNumber, thirdNumber, forthNumber);

	double mean = (firstNumber + secondNumber + thirdNumber + forthNumber)/4		// Calculate the mean of the 4 numbers

	cout << "The mean of the 4 numbers entered are" << fixed << setprecision(2)<< mean << endl;

	cin.get() ;
	cin.get() ;
	
	return 0;

	)

abs(firstNumber, secondNumber, thirdNumber, forthNumber);

double mean = (firstNumber + secondNumber + thirdNumber + forthNumber)/4 // Calculate the mean of the 4 numbers

int main()
{ /* a left brace, not a left parenthesis */
.
.
.
. 
} /* a right brace, not a right parenthesis */

// This program computes the mean and deviation of 4 values entered by a user

#include <iostream> // Access iostream header file

#include <iomanip> // Access iomanip header file

#include <cmath> // Access cmath header file

#include <string> // Access string header file

#include <cfloat> // Access float header file

using namespace std;

int main()

{

// Variables

int i1, i2, i3, i4; // Input variables

int sum; // Computed sum

int mean; // computed mean

int std_dev; // computed deviation

// Prompt the user to input 4 integers

cout << "Enter four whole numbers, separated by spaces: ";

// Read the integers

cin >> i1 >> i2 >> i3 >> i4;

// Compute the sum

sum = i1 + i2 + i3 + i4;

// Compute the mean

mean = sum / 4;

// Compute the standard deviation

std_dev = sqrt((pow(i1 - mean, 2) +

pow(i2 - mean, 2) +

pow(i3 - mean, 2) +

pow(i4 - mean, 2)) / (4 - 1)); 


// Output the results

cout << "The sum of the four numbers is " << sum << endl; 

cout << "The mean of the four numbers are " << mean << endl; 

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

return 0; 

cin.get() ;

cin.get() ;



}