C# Linq에서 표준연산자로 데이터 평균 구하기

using System;
using System.Linq;

namespace LinqMinMaxAverage
{
    class Profile
    {
        public string Name { get; set; }
        public int Height { get; set; }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Profile[] arrProfile =
            {
                new Profile(){Name = "정우성", Height = 186},
                new Profile(){Name = "김태희", Height = 158},
                new Profile(){Name = "고현정", Height = 172},
                new Profile(){Name = "이문세", Height = 178},
                new Profile(){Name = "하하", Height = 171}
            };

            var heightStat = from profile in arrProfile
                             group profile by profile.Height < 175 into g
                             select new
                             {
                                 Group = g.Key == true ? "175미만" : "175이상",
                                 Count = g.Count(),
                                 Max = g.Max(profile => profile.Height),
                                 Min = g.Min(profile => profile.Height),
                                 Average = g.Average(profile => profile.Height)
                             };

            foreach (var stat in heightStat)
            {
                Console.Write("{0} - Count:{1}, Max:{2}, ", stat.Group, stat.Count, stat.Max);
                Console.WriteLine("Min:{0}, Avg:{1}", stat.Min, stat.Average);
            }
        }
    }
}