Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[28,29[	28.5	9	0.125	0.125	0.125
[29,30[	29.5	25	0.347222	0.472222	0.347222
[30,31[	30.5	23	0.319444	0.791667	0.319444
[31,32[	31.5	9	0.125	0.916667	0.125
[32,33]	32.5	6	0.083333	1	0.083333