code is intended to ask user for how many numbers are to be entered, then display the min, max and average.

everything is working correctly besides the Minimum (random number appears), and the average.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main(void)
{
float sum, min = 0, max = 0, mean = 0;
double x = 0, y = 0;
int i = 0, test = 0, test1 = 0;
do{
printf("How many values are to be entered?\n");
test1 = scanf("%f", &sum);
if(test1 == 0 || sum < 0)
{
while(getchar() != '\n');
printf("INPUT ERROR!\n");
test1 = 0;
}
}
while(test1 == 0);
printf("\n");
for(i = 1; i <= sum; i++)
do{
printf("Value %d: ", i);
test = scanf("%lf", &x);
if(test == 0)
{
while(getchar() != '\n');
printf("INPUT ERROR!\n");
}
}
while(test == 0);
y = y +x;
mean = y / sum;
if(i == 1){
min = x;
max = x;
}
if(x > max){
max = x;
}
else if (x < min){
min = x;
}
printf("The minimum value is %g, ",min);
printf("the maximum value is %g, ",max);
printf("and the average value is %g\n",mean);
return(0);
}