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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- namespace console1
- {
- class Program
- {
- static double[] P;
- //ожидаемая вероятность
- static double p = 3;
- static int i = 1;
- static double mathWait;
- static double dispers;
- static double sqrtVariance;
- static void Main(string[] args)
- {
- //кол-во сообщений
- int count = 5;
- double mathWait = getResult1(count);
- if(Math.Floor(mathWait) == count || Math.Ceiling(mathWait) == count)
- Console.WriteLine("кол-во сообщений примерно равно мат. ожиданию:\n mathWait = " + mathWait + " count = " + count);
- else if (count > mathWait)
- Console.WriteLine("кол-во сообщений больше мат. ожидания:\n mathWait = " + mathWait + " count = " + count);
- else
- Console.WriteLine("кол-во сообщений меньше мат. ожидания:\n mathWait = " + mathWait + " count = " + count);
- }
- public static double getResult1(int count)
- {
- int counter = 1;
- while (true)
- {
- for (int i = 0; i < counter; i++)
- {
- //мат. ожидание
- mathWait = i * (Math.Pow(p, i) * (1 - p)) + (i + 1) * (Math.Pow(p, i) * (1 - p)) + (i + 2) * (Math.Pow(p, i) * (1 - p)) + (i + 3) * (Math.Pow(p, i) * (1 - p)) + (i + 4) * (Math.Pow(p, i) * (1 - p));
- //дисперсия
- dispers = Math.Pow(i, 2) * (Math.Pow(p, i) * (1 - p)) + Math.Pow((i + 1), 2) * (Math.Pow(p, i) * (1 - p)) + Math.Pow((i + 2), 2) * (Math.Pow(p, i) * (1 - p)) + Math.Pow((i + 3), 2) * (Math.Pow(p, i) * (1 - p));
- //средне. квадратическое отклонение
- sqrtVariance = Math.Sqrt(dispers);
- }
- counter++;
- if (counter == count+1) break;
- }
- return mathWait;
- }
- }
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