HARMONIC MEAN for normal data.

# Statistics with C++

//program to calculate the HARMONIC MEAN for given normal data.

#include<iostream.h>
#include<iomanip.h>
#include<conio.h>
const SZ=100;
class HMean
{
  public : float Data[SZ],X[SZ];
  float Tn,SX,hm;
  public : void getdata();
  void showdata();
  void hmean();
};

void HMean :: getdata()
{
   cout<<"\n\nEnter total number of data you want to enter ?: ";
   cin>>Tn;
   cout<<"\n\nEnter Your Data : ";
   for(int i=0;i<Tn;i++)
   {
     cin>>Data[i];

   }
}

void HMean :: hmean()
{

   for(int i=0;i<Tn;i++)
   {
     X[i]=1/Data[i];
     SX+=X[i];

   }
   hm=( Tn/SX);
}

void HMean :: showdata()
{
   cout<<"\n\n  X  :  ";
   for(int i=0;i<Tn;i++)
   {  cout<<Data[i]<<"  "; }

   cout<<"\n\n 1/X :  ";
   for(i=0;i<Tn;i++)
   {  cout<<setprecision(3)<<X[i]<<"  ";  }

   cout<<"\n\nNumber of observations = "<<Tn;
   cout<<"\n\n\nHarmonic mean for your data = "<<setprecision(2)<<hm;

}

void main()
{
  HMean HM;
  clrscr();
  HM.getdata();
  HM.hmean();
  HM.showdata();
  getch();

}

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Out Put :

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* Please comment if you find any error and if it need corrections.

Happy Coding!