Question

2. Arrange the same data above in a simple frequency distribution table with X values listed in 7 to 15 categories. You decide what would make the most reasonable display based on the criteria we discussed in class. (Hint: using an arrangement like your stem and leaf display groupings would not be a bad idea.) Leave enough room to display additional values as described in #4.46 below. 3. Determine N for the above data. N- 4. Indicate the relative frequency for each interval category of X on the table you created in #2. 5. Indicate the cumulative frequency for each category of X. 6. Compute the relative cumulative frequencies for each X interval.

Answer 1

N for data, N = 250

X	f	Relative frequency	Cumulative frequency	Relative Cumulative frequency
40-49	5	= 5/250 = 0.02	= 5	= 0.02
30-39	25	= 25/250 = 0.1	= 5 + 25 = 30	= 0.02 + 0.10 = 0.12
20-29	100	= 100/250 = 0.4	= 30 + 100 = 130	= 0.12 + 0.04 = 0.52
10-19	80	= 80/250 = 0.32	= 130 + 80 = 210	= 0.52 + 0.32 = 0.84
0-9	40	= 40/250 = 0.16	= 210 + 40 = 250	= 0.84 + 0.16 = 1.00