Question

Frequency Distributions and Graphs 400 540 460 330 540 720 550 390 220 530 340 610 1004 410 920 390 630 400 290 760 200 880 480 410 8 1. Arrange the above data in a stem and leaf display, using 100's as the stem 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-H6 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

(1)
	Stem and Leaf plot for	x
	stem unit =	100
	leaf unit =	10
	Frequency	Stem	Leaf
	1	0	0
	0	1
	3	2	0 2 9
	4	3	3 4 9 9
	6	4	0 0 1 1 6 8
	4	5	3 4 4 5
	2	6	1 3
	2	7	2 6
	1	8	8
	1	9	2
	1	10	0
	25

(2)
CI	F
0 - 100	1
100 - 200	0
200 - 300	3
300 - 400	4
400 - 500	6
500 - 600	4
600 - 700	2
700 - 800	2
800 - 900	1
900 - 1000	1
1000 - 1100	1
(3) N = 25

(4, 5, 6)
CI	F	Cumulative F	Relative F	Relative Cumulative F
0 - 100	1	1	0.04	0.04
100 - 200	0	1	0	0.04
200 - 300	3	4	0.12	0.16
300 - 400	4	8	0.16	0.32
400 - 500	6	14	0.24	0.56
500 - 600	4	18	0.16	0.72
600 - 700	2	20	0.08	0.8
700 - 800	2	22	0.08	0.88
800 - 900	1	23	0.04	0.92
900 - 1000	1	24	0.04	0.96
1000 - 1100	1	25	0.04	1