Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[10,11[	10.5	1	0.005917	0.005917	0.009709
[11,12[	11.5	3	0.017751	0.023669	0.029126
[12,13[	12.5	3	0.017751	0.04142	0.029126
[13,14[	13.5	8	0.047337	0.088757	0.07767
[14,15[	14.5	13	0.076923	0.16568	0.126214
[15,16[	15.5	17	0.100592	0.266272	0.165049
[16,17[	16.5	27	0.159763	0.426036	0.262136
[17,18[	17.5	20	0.118343	0.544379	0.194175
[18,19[	18.5	8	0.047337	0.591716	0.07767
[19,20]	19.5	3	0.017751	0.609467	0.029126