Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[67,68[	67.5	1	0.013889	0.013889	0.013889
[68,69[	68.5	13	0.180556	0.194444	0.180556
[69,70[	69.5	7	0.097222	0.291667	0.097222
[70,71[	70.5	13	0.180556	0.472222	0.180556
[71,72[	71.5	23	0.319444	0.791667	0.319444
[72,73[	72.5	6	0.083333	0.875	0.083333
[73,74[	73.5	6	0.083333	0.958333	0.083333
[74,75]	74.5	3	0.041667	1	0.041667