Code:

#include <stdio.h>
#define SIZE 99
void mean( const int [] );
void median( int [] );
**void mode( int [], const int [] ) ;**
void bubbleSort( int [] );
void printArray( const int[] );
int main()
{
** int frequency[ 10 ] = { 0 };
int response[ SIZE ] =
{ 6, 7, 8, 9, 8, 7, 8, 9, 8, 9,
7, 8, 9, 5, 9, 8, 7, 8, 7, 8,
6, 7, 8, 9, 3, 9, 8, 7, 8, 7,
7, 8, 9, 8, 9, 8, 9, 7, 8, 9,
6, 7, 8, 7, 8, 7, 9, 8, 9, 2,
7, 8, 9, 8, 9, 8, 9, 7, 5, 3,
5, 6, 7, 2, 5, 3, 9, 4, 6, 4,
7, 8, 9, 6, 8, 7, 8, 9, 7, 8,
7, 4, 4, 2, 5, 3, 8, 7, 5, 6,
4, 5, 6, 1, 6, 5, 7, 8, 7 };
**
mean( response );
** mode( frequency, response );**
return 0;
}
void mean( const int answer[] )
{
int j, total = 0;
printf("%s\n%s\n%s\n", "********", " Mean", "********" );
for (j = 0; j <= SIZE - 1; j++ )
total += answer[ j ];
printf( "The mean is the average value of the data\n"
"items. The mean is equal to the total of\n"
"all the data items divided by the number\n"
"of data items ( %d ). The mean value for\n"
"this run is: %d / %d = %.4f\n\n",
SIZE, total, SIZE, ( double ) total / SIZE );
}
void mode( int freq[], const int answer[] )
{
int rating, j, h, largest = 0, modeValue = 0;
printf("\n%s\n%s\n%s\n",
"*********", " Mode", "*********" );
for ( rating = 1; rating <= 0; rating++ )
freq[ rating ] = 0;
for ( j = 0; j <= SIZE - 1; j++ )
++freq [ answer[ j ] ];
printf("%s%11s%19s\n\n%54s\n%54s\n\n",
"Response", "Frequency", "Histogram",
"1 1 2 2", "5 0 5 0 5");
for ( rating = 1; rating <= 9; rating++ ) {
printf("%8d%11d ", rating, freq[ rating ] );
if ( freq[ rating ] > largest ) {
largest = freq[ rating ];
modeValue = rating;
}
for ( h = 1; h <= freq[ rating ]; h++ )
printf("*");
printf("\n");
}
printf("The mode is the most frequent value.\n"
"For this run the mode is %d which occured"
" %d ties.\n", modeValue, largest );
}