Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[6.5,7[	6.75	6	0.083333	0.083333	0.166667
[7,7.5[	7.25	25	0.347222	0.430556	0.694444
[7.5,8[	7.75	13	0.180556	0.611111	0.361111
[8,8.5[	8.25	18	0.25	0.861111	0.5
[8.5,9]	8.75	10	0.138889	1	0.277778