1. Write a program in c++ / cpp that initializes an array of float to contain 12

Question

1. Write a program in c++ / cpp that initializes an array of float to contain 12 monthly temperatures. It should read in the 12 months from the keyboard.

2. Program should calculate/determine the minimum, maximum, and average in the array of temperatures. It is important that we do not compute/check for these values when having user input the temperatures.

3. compute the standard deviation of the array of temperatures based on the following formula:

Explanation / Answer

I am providing you code for part 3. Hope you will get an idea. Please let me know if you have any doubt.

#include <iostream>
#include <string>
#include<fstream>
#include <vector>
#include <math.h>
using namespace std;

vector<int> numbers;
void readarray(){

ifstream in("input.txt",ios::in);
   int number; //Variable to hold each number as it is read
//Read number using the extraction (>>) operator
while (in >> number) {
       //Add the number to the end of the array
       numbers.push_back(number);
   }
   //Close the file stream
   in.close();
}
double findaverage(){
double avg,sum=0;
for (int i = 0; i < numbers.size(); i++)
{
sum = sum + numbers[i];
}
avg= sum / (double)numbers.size();
return avg ;
}

double finddev(double avg){
double variance,sum1=0;
double std_deviation ;
    for (int i = 0; i < numbers.size(); i++)
   {
   sum1 = sum1 + pow((numbers[i] - avg), 2);
   }
   variance = sum1 / (double)numbers.size();

   std_deviation = sqrt(variance);
   return std_deviation ;
}

void writeresults(double avg,double dev){
cout << "Numbers are: ";
   for (int i=0; i<numbers.size(); i++) {
       cout << numbers[i] << ' ';
   }

   cout<<"Average of the numbers: "<<avg<<endl;
   cout<<"Standard deviation: "<<dev<<endl;
}

int main()
{
double avg,dev;
readarray();
avg=findaverage();
dev=finddev(avg);
writeresults(avg,dev);

return 0;
}

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.