# Java Program to Calculate Standard Deviation

In this blog, we will learn how to find the standard deviation using the function. Implementation: 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);
}
} Output:
Standard Deviation = 2.872281 Happy Coding! Follow us on Instagram @programmersdoor Join us on Telegram @programmersdoor Please write comments if you find any bug in the above code/algorithm, or find other ways to solve the same problem. Follow Programmers Door for more. #blog #interview #placement #learn #computer #science