import java.util.Arrays;
import java.util.Scanner;

public class Deviation {
    public static void main(String[] args) {
        int participants;
        double [] arrSeconds = new double[10] ;
        int i = 0;
        double fastest = 50000  ;
        double slowest =0;
        Scanner scan = new Scanner(System.in);
        System.out.print("Брой на участниците :");
        participants = scan.nextInt();
        if( participants > 10){
            System.out.print("Моля въведете до 10 участника. Въведете наново :");
            participants = scan.nextInt();
        }
        while (i < participants){
            System.out.print("Участник номер " + i + " секунди :");
            arrSeconds[i]= scan.nextDouble();
            i++;
        }
        System.out.println(Arrays.toString(arrSeconds));
        double total = 0;
        for( int j = 0 ; j <participants ; j++){
            if(arrSeconds[j]>slowest){
                slowest = arrSeconds[j];
            }
            if(arrSeconds[j]<fastest && arrSeconds[j]!=0){
                fastest = arrSeconds[j];
            }
            total +=arrSeconds[j];
        }
        double averageSeconds = total/participants;
        System.out.println("Най-бързо време : " + fastest);
        System.out.println("Най-бавно време : " + slowest);
        System.out.println("Средно Аретм. : " + averageSeconds);
        double mean = total/participants;
        double preVariance =0 ;
        for (int j =0 ; j < participants; j++){
            preVariance+=Math.pow(arrSeconds[j] - mean , 2);
        }
        double variance= preVariance/(participants -1);
        double standartDeviation = Math.sqrt(variance);
        System.out.println("Standart Deviation : " + standartDeviation);

    }
}