Error Correction Question

Correct following program.

Calculate the average value while reading a list of integer values in a file, and then print a number of values that are greater than the average. 


#include <stdio.h>
#define MAXSIZE 128

int main(void)
{
  int data[MAXSIZE];
  int size, sum, count, i;
  double avg;
         
  sum = 0;
  size = 0;
  while (scan("%d", data[size]) != EOF) {
    sum += data[size];
    size++;
  }
         
  avg = (double) sum / size;
  printf("avg = %f\n", avg);
        
  for (i = 1; i  <= size; i++) {
    if (data[i] > avg) {
      count++;
    }
  }
  printf("greater than avg: %d\n", count);
         
  return 0;
}

Result