Calculate Standard Deviation

Giovanny Gongora

Calculates the standard deviation of an individual series using arrays.

#include <iostream>
#include <cmath>

using namespace std;
float calculateSD(float data[]);
float calculateSD(float data[]) {
  float sum = 0.0, mean, standardDeviation = 0.0;
  int i;
  for(i = 0; i < 10; ++i) {
    sum += data[i];
  }
  mean = sum / 10;
  for(i = 0; i < 10; ++i) {
    standardDeviation += pow(data[i] - mean, 2);
  }
  return sqrt(standardDeviation / 10);
}