Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[15,15.5[	15.25	8	0.095238	0.095238	0.190476
[15.5,16[	15.75	12	0.142857	0.238095	0.285714
[16,16.5[	16.25	9	0.107143	0.345238	0.214286
[16.5,17[	16.75	8	0.095238	0.440476	0.190476
[17,17.5[	17.25	8	0.095238	0.535714	0.190476
[17.5,18[	17.75	16	0.190476	0.72619	0.380952
[18,18.5[	18.25	13	0.154762	0.880952	0.309524
[18.5,19]	18.75	10	0.119048	1	0.238095