Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,20[	10	2	0.016129	0.016129	0.000806
[20,40[	30	3	0.024194	0.040323	0.00121
[40,60[	50	2	0.016129	0.056452	0.000806
[60,80[	70	4	0.032258	0.08871	0.001613
[80,100[	90	2	0.016129	0.104839	0.000806
[100,120[	110	2	0.016129	0.120968	0.000806
[120,140[	130	4	0.032258	0.153226	0.001613
[140,160[	150	4	0.032258	0.185484	0.001613
[160,180[	170	3	0.024194	0.209677	0.00121
[180,200[	190	14	0.112903	0.322581	0.005645
[200,220[	210	16	0.129032	0.451613	0.006452
[220,240[	230	12	0.096774	0.548387	0.004839
[240,260[	250	12	0.096774	0.645161	0.004839
[260,280[	270	10	0.080645	0.725806	0.004032
[280,300[	290	4	0.032258	0.758065	0.001613
[300,320[	310	5	0.040323	0.798387	0.002016
[320,340[	330	2	0.016129	0.814516	0.000806
[340,360[	350	3	0.024194	0.83871	0.00121
[360,380[	370	1	0.008065	0.846774	0.000403
[380,400[	390	6	0.048387	0.895161	0.002419
[400,420[	410	5	0.040323	0.935484	0.002016
[420,440[	430	4	0.032258	0.967742	0.001613
[440,460[	450	3	0.024194	0.991935	0.00121
[460,480]	470	1	0.008065	1	0.000403