Computer Oriented Statistical Method
Q1. Write a program to calculate the Arithmetic mean for individual series by direct
method?
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int n , i , arr[50] , sum=0;
cout<<"how many number you want to enter\n";
cin>>n;
cout<<"enter"<<n<<"number\n";
for(i=0;i<n;i++)
{
cin>>arr[i];
sum=sum+arr[i];
}
int armean=sum/n;
cout<<"arithmetic mean="<<armean;
getch();
}
1 BCA Department Chamba
Computer Oriented Statistical Method
Q2. Write a program to calculate arithmetic mean using frequency distribution for discrete
series?
#include<iostream.h>
#include<conio.h>
void main()
{
int n,i,f[50],sfx=0,sf=0;
float am=0.0;
clrscr();
cout<<"how many number enter in an array"<<endl;
cin>>n;
for(i=0;i<n;i++)
{
cout<<i<<"=";
cin>>f[i];
}
for(i=0;i<n;i++)
{
sf+=f[i];
sfx+=f[i]*i;
}
cout<<"sum of sf="<<sf<<endl;
cout<<"sum of sfx="<<sfx<<endl;
am=sfx/(float)sf;
cout<<"arithmetic mean="<<am;
getch();
}
2 BCA Department Chamba
Computer Oriented Statistical Method
3 BCA Department Chamba
Computer Oriented Statistical Method
Q3. Write a program to calculate the Arithmetic mean for discrete series.
#include<iostream.h>
#include<conio.h>
void main()
{
int n, i,f[50],sfx=0,sf=0;
float am;
clrscr();
cout<<"how many number enter in array"<<endl;
cin>>n;
for(i=0;i<=n;i+=5)
{
cout<<i<<"=";
cin>>f[i];
}
for(i=0;i<=n;i+=5)
{
sf+=f[i];
sfx+=f[i]*i;
}
cout<<"sum of sf="<<sf<<endl;
cout<<"sum of sfx="<<sfx<<endl;
am=sfx/(float)sf;
cout<<"arithmetic mean="<<am;
getch();
}
4 BCA Department Chamba
Computer Oriented Statistical Method
5 BCA Department Chamba
Computer Oriented Statistical Method
Q4. Write a program to calculate arithmetic mean for continuous series.
#include<iostream.h>
#include<conio.h>
void main()
{
int x,y,f[50],sum=0,n=0,m=0;
float am;
clrscr();
for(x=3,y=5;x<=9,y<=11;x+=2,y+=2)
{
cout<<x<<"-"<<y <<" ";
cin>>f[x];
}
for(x=3,y=5;x<=9,y<=11;x+=2,y+=2)
{
n+=f[x];
m=(x+y)/2;
sum+=f[x]*m;
}
cout<<"sum of N="<<n<<endl;
cout<<"sum of sum="<<sum<<endl;
am=sum/(float)n;
cout<<"Arithmetic Mean="<<am;
getch();
}
6 BCA Department Chamba
Computer Oriented Statistical Method
Q5. Write a program to find harmonic mean for individual series.
#include<iostream.h>>
#include<conio.h>
void main()
{
int n,i,x[50];
double sx=0.0;
float hm=0.0 , sum=0.0;
clrscr();
cout<<"how many number want to enter"<<endl;
cin>>n;
for(i=0;i<=n;i++)
{
cout<<i<<" ";
cin>>x[i];
}
for(i=0;i<n;i++)
{
sx=1.0/x[i];
cout<<sx<<endl;
sum+=sx;
}
cout<<"now sum is ="<<sum<<endl;
hm=n/(float)sum;
cout<<"hormonic mean="<<hm;
getch();
}
7 BCA Department Chamba
Computer Oriented Statistical Method
8 BCA Department Chamba
Computer Oriented Statistical Method
Q6. Write a program to calculate the harmonic mean for continuous series.
#include<iostream.h>
#include<conio.h>
void main()
{
int x,y,f[50],sf=0,m=0;
float hm=0.0,sfm=0.0;
clrscr();
cout<<"enter the value of frequency\n";
for(x=2,y=4;x<=8,y<=10;x+=2,y+=2)
{
cout<<x<<"-"<<y<<"";
cin>>f[x];
}
for(x=2,y=4;x<=8,y<=10;x+=2,y+=2)
{
sf+=f[x];
m=(x+y)/2;
sfm=f[x]/(float)m;
}
cout<<"sum of sf="<<sf<<endl;
cout<<" sum of sfm="<<sfm<<endl;
hm=sf/sfm;
cout<<"hamrnonic mean"<<hm;
getch();
}
9 BCA Department Chamba
Computer Oriented Statistical Method
10 BCA Department Chamba
Computer Oriented Statistical Method
Q7. Write a program to calculate geometric mean for individual series.
#include<iostream.h>
#include<conio.h>
void main()
{
int n,i,x[50];
float sum=0.0,gm1=0.0,gm=0.0,sf=0.0;
clrscr();
cout<<"enter the elements of an array"<<endl;
cin>>n;
for(i=0;i<n;i++)
{
cin>>x[i];
}
for(i=0;i<n;i++)
{
sf=log10(x[i]);
cout<<sf<<endl;
sum+=sf;
}
cout<<"now the value of sum="<<sum<<endl;
cout<<"number of elements="<<n;
gm1=sum/n;
gm=pow(10,gm1);
cout<<"the value of gm1="<<gm1<<endl;
cout<<"now the Geometric mean is ="<<gm;
getch();
}
11 BCA Department Chamba
Computer Oriented Statistical Method
12 BCA Department Chamba
Computer Oriented Statistical Method
Q8. Write a program to find Geometric Mean for continuous series.
#include<iostream.h>
#include<conio.h>
#include<math.h>
void main()
{
int x,y,f[50],sf=0,m=0;
float sm=0.0,sfm=0.0,gm1=0.0,gm=0.0;
clrscr();
for(x=0,y=10; x<=40,y<=50;x+=10,y+=10)
{
cout<<x<<"-"<<y<<" ";
cin>>f[x];
}
for(x=0,y=0;x<=40,y<=50;x+=10,y+=10)
{
sf+=f[x];
m=(x+y)/2;
sm=log10(m);
cout<<sm<<endl;
sfm+=f[x]*(float)sm;
}
cout<<"sum of sf="<<sf<<endl;
cout<<"now the value of sfm="<<sfm <<endl;
gm1=sfm/sf;
gm=Pow(10,gm1);
cout<<"value of gm1="<<gm1<<endl;
cout<<"now geometric mean="<<gm<<endl;
getch();
13 BCA Department Chamba
Computer Oriented Statistical Method
14 BCA Department Chamba
Computer Oriented Statistical Method
Q9. Write a program to calculate Geometric Mean for discrete series.
#include<iostream.h>
#include<conio.h>
#include<math.h>
void main()
{
int n,i,x[50],f[50],sf=0;
float sfx=0.0,sx=0.0,gm1=0.0,gm=0.0;
clrscr();
cout<<"how many number in an array"<<endl;
cin>>n;
cout<<"enter the elements in an array"<<endl;
for(i=0;i<n;i++)
{
cin>>x[i];
}
cout<<"enter elements in an arrayf"<<endl;
for(i=0;i<n;i++)
{
cin>>f[i];
}
for(i=0;i<n;i++)
{
sf+=f[i];
sx=log10(x[i]);
cout<<sx<<endl;
sfx+=f[i]*(float)sx;
}
cout<<"sum of sf="<<sf<<endl;
cout<<"now value of sfx="<<sfx<<endl;
gm1=sfx/sf;
15 BCA Department Chamba
Computer Oriented Statistical Method
gm=pow(10,gm1);
cout<<"value of gm1="<<gm1<<endl;
cout<<"now geometric mean is="<<gm<endl;
getch();
}
16 BCA Department Chamba
