Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[1.5,1.6[	1.55	11	0.152778	0.152778	1.527778
[1.6,1.7[	1.65	22	0.305556	0.458333	3.055556
[1.7,1.8[	1.75	23	0.319444	0.777778	3.194444
[1.8,1.9]	1.85	16	0.222222	1	2.222222