Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[17.5,18[	17.75	1	0.011765	0.011765	0.023529
[18,18.5[	18.25	12	0.141176	0.152941	0.282353
[18.5,19[	18.75	13	0.152941	0.305882	0.305882
[19,19.5[	19.25	12	0.141176	0.447059	0.282353
[19.5,20[	19.75	4	0.047059	0.494118	0.094118
[20,20.5[	20.25	4	0.047059	0.541176	0.094118
[20.5,21[	20.75	5	0.058824	0.6	0.117647
[21,21.5[	21.25	6	0.070588	0.670588	0.141176
[21.5,22[	21.75	5	0.058824	0.729412	0.117647
[22,22.5[	22.25	3	0.035294	0.764706	0.070588
[22.5,23[	22.75	7	0.082353	0.847059	0.164706
[23,23.5]	23.25	13	0.152941	1	0.305882