namereq

標準偏差

Jun 27th, 2018
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C 0.46 KB | None | 0 0
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main(void)
  5. {
  6.     int i;
  7.     double d[10],sum = 0.0,ave,bunsan = 0.0,hensa;
  8.     for(i=0;i<10;i++){
  9.         printf("%d個めのデータを入力してください。> ",i+1);
  10.         scanf("%lf",&d[i]);
  11.         sum += d[i];
  12.     }
  13.     ave = sum / 10;
  14.     for(i=0;i<10;i++){
  15.         bunsan += (d[i] - ave)*(d[i] - ave);
  16.     }
  17.     bunsan /= 10;
  18.     hensa = sqrt(bunsan);
  19.    
  20.     printf("データの平均は %lf 標準偏差は %lf\n",ave,hensa);
  21.    
  22.     return 0;
  23. }
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