C语言：计算并输出给定10个数的方差。

//计算并输出给定10个数的方差。

 #include<math.h>

 #include<stdio.h>

 double fun(double x[])

 {

     double p = 0.0,f=0.0,g=0.0;

     for (int i = ; i < ; i++)

     {

         p += x[i];

     }

     p = p / ;

     printf("%f\n", p);

     for (int j = ; j < ; j++)

     {

         g = x[j] - p;

         f += g*g;

         printf("%f\n", f);

     }

     f = f / ;

     f = sqrt(f);

     return f;

 }

 void main()

 {

   FILE *wf;

   double s,x[]={95.0,89.0,76.0,65.0,88.0,72.0,85.0,81.0,90.0,56.0};

   int i;

   printf("\nThe original data is:\n");

   for(i=;i<;i++)

      printf("%6.1f ",x[i]);

   printf("\n\n ");

   s=fun(x);

   printf("s=%f\n\n ",s);

 /******************************/

   wf=fopen("out.dat","w");

   fprintf(wf,"%f",s);

   fclose(wf);

 /*****************************/

 }