private void Button7_Click(object sender, EventArgs e)
        {
            var tmpDict = new SortedDictionary <double, double>();
            var N       = Dict.Sum(x => x.Value);

            foreach (var i in Dict)
            {
                tmpDict[i.Key] = (double)i.Value / N;
            }
            var chartForm = new ChartForm1(tmpDict, new[] { "x", "w" });

            chartForm.Show();
        }
        private void Button6_Click(object sender, EventArgs e)
        {
            var chartForm = new ChartForm1(Dict, new[] { "x", "n" });

            chartForm.Show();
        }