**Program to Calculate Standard Deviation in Java**

package com.hubberspot.example; public class StandardDeviation { public static void main(String[] args) { double[] numbers = new double[10]; // Take the 10 numbers in array for which we // want to calculate the standard deviation numbers[0] = 23; numbers[1] = 92; numbers[2] = 46; numbers[3] = 55; numbers[4] = 63; numbers[5] = 94; numbers[6] = 77; numbers[7] = 38; numbers[8] = 84; numbers[9] = 26; System.out.println("1. Get the mean of numbers. The mean is : "); double sum = 0; // Taking the average to numbers for(int i =0; i< numbers.length; i++) { sum = sum + numbers[i]; } double mean = sum/numbers.length; System.out.println(mean); System.out.println("\n2. Get deviation of mean from each number : "); double[] deviations = new double[10]; // Taking the deviation of mean from each numbers for(int i = 0; i < deviations.length; i++) { deviations[i] = numbers[i] - mean ; System.out.printf("%2.2f",deviations[i]); System.out.print(" "); } System.out.println(); System.out.println("\n3. Get squares of deviations : "); double[] squares = new double[10]; // getting the squares of deviations for(int i =0; i< squares.length; i++) { squares[i] = deviations[i] * deviations[i]; System.out.printf("%4.2f",squares[i]); System.out.print(" "); } System.out.println(); System.out.println("\n4. Get addition of squares : "); sum = 0; // adding all the squares for(int i =0; i< squares.length; i++) { sum = sum + squares[i]; } System.out.println(sum); // dividing the numbers by one less than total numbers System.out.println("\n5. Divide addition of squares by total (numbers) - 1 : "); double result = sum / (numbers.length - 1); System.out.printf("%4.2f",result); double standardDeviation = Math.sqrt(result); // Taking square root of result gives the // standard deviation System.out.println("\n\n6. Take the square root of result which gives"); System.out.println("the Standard Deviation of the ten numbers : "); System.out.printf("%4.2f",standardDeviation); } }

**Output of the program :**

**A video tutorial to demonstrate how to calculate Standard Deviation through a Java program.**

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