Calculate Average of a given array using C

#include<stdio.h>
main()
{
int n, i;
float num[100], sum=0.0, average;
printf("Enter the numbers of data: ");
scanf("%d",&n);
while (n>100 || n<=0)
{
printf("Error! number should in range of (1 to 100).\n");
printf("Enter the number again: ");
scanf("%d",&n);
}
for(i=0; i<n;i++)
{
printf("%d. Enter number: ",i+1);
scanf("%f",&num[i]);
sum+=num[i];
}
average=sum/n;
printf("Average = %.2f",average);
}