private static void WriteResoults(IGradeTracker caderno)
{
Estatistica estatis = caderno.CalcularEstatistica();
//Console.WriteLine(caderno.Nome);
WriteResult("Avarage", estatis.AvarageGrade);
WriteResult("Highest", estatis.HighestGrade);
WriteResult("Lowest", estatis.LowestGrade);
WriteResult("Grade", estatis.LetterGrade);
WriteResult(estatis.Description, estatis.LetterGrade);
Console.ReadKey();
}
