import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
}
} import java.util.Scanner; Scanner java.util public class Main {
public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
}
} Main public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
} main {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
} try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
} {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
} Scanner sc = new Scanner(System.in) Scanner sc = new Scanner(System.in) new Scanner(System.in) while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
} true {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
} int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc if (n == 0) { break; } n == 0 n 0 { break; } break; int[] scores = new int[n]; scores new int[n] n for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
} int i = 0; int i = 0; i 0 i < scores.length i scores.length scores scores.length i++ i++ i {
scores[i] = sc.nextInt();
} {
scores[i] = sc.nextInt();
} scores[i] = sc.nextInt() scores[i] scores i sc.nextInt() sc.nextInt sc double average = 0 average 0 variance = 0; variance 0 for(int i=0;i<scores.length;i++)average+=scores[i]; int i=0; int i=0; i 0 i<scores.length i scores.length scores scores.length i++ i++ i average+=scores[i]; average+=scores[i] average scores[i] scores i average/=n average n for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
} int i=0; int i=0; i 0 i<scores.length i scores.length scores scores.length i++ i++ i {
    variance+=Math.pow(scores[i]-average,2);
} {
    variance+=Math.pow(scores[i]-average,2);
} variance+=Math.pow(scores[i]-average,2) variance Math.pow(scores[i]-average,2) Math.pow Math scores[i]-average scores[i] scores i average 2 variance/=n variance n System.out.println(Math.sqrt(variance)) System.out.println System.out System System.out Math.sqrt(variance) Math.sqrt Math variance String[] args args public class Main {
public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
}
} public class Main {
public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
}
} Main
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// 標準入力からデータを読み込む準備
try (Scanner sc = new Scanner(System.in)) {
while (true) {
int n = sc.nextInt();
if (n == 0) { break; }
int[] scores = new int[n];
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
}
double average = 0, variance = 0;
// … 平均値averageと，分散varianceを計算しよう …
for(int i=0;i<scores.length;i++)average+=scores[i];
average/=n;
for(int i=0;i<scores.length;i++){
    variance+=Math.pow(scores[i]-average,2);
}
variance/=n;
System.out.println(Math.sqrt(variance));
}
}
}
}
