Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[10,11[	10.5	1	0.008065	0.008065	0.009709
[11,12[	11.5	3	0.024194	0.032258	0.029126
[12,13[	12.5	3	0.024194	0.056452	0.029126
[13,14[	13.5	8	0.064516	0.120968	0.07767
[14,15[	14.5	13	0.104839	0.225806	0.126214
[15,16[	15.5	17	0.137097	0.362903	0.165049
[16,17[	16.5	27	0.217742	0.580645	0.262136
[17,18[	17.5	20	0.16129	0.741935	0.194175
[18,19[	18.5	8	0.064516	0.806452	0.07767
[19,20]	19.5	3	0.024194	0.830645	0.029126