Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[18,19[	18.5	1	0.011905	0.011905	0.011905
[19,20[	19.5	0	0	0.011905	0
[20,21[	20.5	4	0.047619	0.059524	0.047619
[21,22[	21.5	13	0.154762	0.214286	0.154762
[22,23[	22.5	12	0.142857	0.357143	0.142857
[23,24[	23.5	12	0.142857	0.5	0.142857
[24,25[	24.5	18	0.214286	0.714286	0.214286
[25,26[	25.5	12	0.142857	0.857143	0.142857
[26,27[	26.5	7	0.083333	0.940476	0.083333
[27,28]	27.5	5	0.059524	1	0.059524