Name _____________________
Date _____ Class _____
Homework: Relative Frequency & Cumulative Frequency Histograms
Mr. Lynch
For each of the following complete a chart with the following columns: Class/Interval,
Class Boundaries, Tally, Frequency, Class Midpoint, Cumulative Frequency, and Relative
Frequency. For #'s 1 & 2 construct a cumulative frequency histogram and for #'s 3 & 4
construct a relative frequency histogram on graph paper.
1) The following grades were received on the midterm in Mr. Jordan's Biology 101 class:
64
65
54
67
95
74
92
63
67
62
84
83
78
62
87
82
97
78
76
87
66
93
85
88
92
83
87
98
97
98
73
74
87
92
87
84
Use 6 classes!
2) The following scores were obtained by students at Grover Cleveland State High School on the
SAT exam: 1810 1870 1540 1650 1420 1150 1560 1320 1780 1350 1530
1360 1460 1650 1630 1460 1730 1430 1440 1230 1380 1340 1320
1480 1980 1930 1970 1320 1980 1920 1890 1740 1870 1470 1780
Use 5 classes!
3) The following grades were received by the students in Mr. McCormack's Home Economics
class: 69
87
80
96
76
90
87
59
89
70
68
70
58
96
70
65
87
86
57
80
95
68
97
94
79
84
79
Use 4 classes!
4) The St. Louis Cardinals have sold the following amounts of team jerseys over the past 25
years (in millions): 34
53
43
43
57
65
86
73
43
24
67
57
66
57
86
45
65
78
68
76
67
45
36
55
65
Use 4 classes!