Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[16,16.5[	16.25	2	0.025974	0.025974	0.051948
[16.5,17[	16.75	8	0.103896	0.12987	0.207792
[17,17.5[	17.25	13	0.168831	0.298701	0.337662
[17.5,18[	17.75	9	0.116883	0.415584	0.233766
[18,18.5[	18.25	12	0.155844	0.571429	0.311688
[18.5,19[	18.75	7	0.090909	0.662338	0.181818
[19,19.5[	19.25	7	0.090909	0.753247	0.181818
[19.5,20[	19.75	9	0.116883	0.87013	0.233766
[20,20.5[	20.25	6	0.077922	0.948052	0.155844
[20.5,21[	20.75	3	0.038961	0.987013	0.077922
[21,21.5]	21.25	1	0.012987	1	0.025974