Standard Deviation

Java Program to create a Standard Deviation

Author: Abhijith720

Standard Deviation

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+public class StandardDeviation {
+
+    public static void main(String[] args) {
+        double[] numArray = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
+        double SD = calculateSD(numArray);
+
+        System.out.format("Standard Deviation = %.6f", SD);
+    }
+
+    public static double calculateSD(double numArray[])
+    {
+        double sum = 0.0, standardDeviation = 0.0;
+        int length = numArray.length;
+
+        for(double num : numArray) {
+            sum += num;
+        }
+
+        double mean = sum/length;
+
+        for(double num: numArray) {
+            standardDeviation += Math.pow(num - mean, 2);
+        }
+
+        return Math.sqrt(standardDeviation/length);
+    }
+}