A health visitor at a school is going to measure the heights of all pupils. For

Question

A health visitor at a school is going to measure the heights of all pupils. For a class she makes a
statistics giving the number of pupils of each height and the average height.

Make a C++ program that helps the health visitor making the statistics. Divide your program into
functions that do the following

•

Reading pupils' heights (assume the heights range from 160cm to 170cm only)

•

statistics of the number of pupils of each height

• the class height average
Example: In a class with 10 pupils the heights of the individual pupils, in centimeters, are:

166, 167, 160, 165, 170, 165, 165, 170, 160, 162

The program should read in all the numbers and outputs a table like this:

Height
160
161
162
163
164
165
166
167
168
169
170
Average height 163.9

number of pupils
2
0
1
2
1
2
0
1
0
0
1

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Explanation / Answer

#include<iostream>
using namespace std;
void read(int a[])
{
for(int i=0; i<10; i++)
{
cout << " enter height :"<<endl;
cin >> a[i];
}
}
double avg(int a[])
{
int sum = 0;
for(int i=0; i<10; i++)
sum = sum + a[i];
double avg = static_cast<double> (sum)/10.0;
return avg;
}
void numofppl(int a[],int b[])
{
for(int i=0; i<10; i++)
{
b[170-a[i]]++;
}
}
int main()
{
int a[10];
int b[11];
for(int i=0; i<11; i++)
b[i]=0;
read(a);
numofppl(a,b);
cout << " Height " << " number of pupil " << endl;
for(int i=0; i<11; i++)
cout << (160+i) << "              "<< b[i] << endl;
cout << " average height given by " << avg(a);
return 0;
}

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