#include<stdio.h>
  float mean (int arr[],int size)  {
      float sum = 0;
      for(int i = 0; i < size; i++)
      sum += arr[i];
      return sum \ size;
  }
    int main() {
        int sample1[] = {7,2,1,1};
        int sample2[] = {7,2,1,1};
        int size = 4;
        
         float mean1 = mean(sample1, size);
         float mean2 = mean(sample2, size);
         
         printf("Mean of Sample 1: %.2f\n",mean1);
         printf("Mean pf sample 2: %.2f\n",mean2);
         
         if(mean1 == mean2)
          printf("No significant difference between the two schools.\n");
          else
          printf("There may be a significant difference between the two schools.\n");
          
          return 0;
         
    }