13. The following are the marks (out of 100) of 60 students in mathematics :
16,13, 5, 80, 86, 7, 51, 48, 24, 56, 70, 19, 61, 17, 16, 36, 34, 42, 34, 35, 72, 55, 75, 31, 52, 28, 72, 97,
74, 45, 62, 68, 86, 35, 85, 36, 81, 75, 55, 26, 95, 31, 7, 78, 92, 62, 52, 56, 15, 63, 25, 36, 54, 44, 47,
27, 72, 17, 4, 30.
Construct a grouped frequency distribution table with width 10 of each class starting from 0-9.
Answers
Step-by-step explanation:
Arranging the following data in ascending order:
4, 5, 7, 7, 13, 15, 16, 16, 17, 17, 19, 24, 25, 26, 27, 28, 30, 31, 34, 34, 35, 35, 36, 36, 36, 42, 44, 45, 47, 48,
51, 52, 52, 54, 55, 55, 56, 56, 61, 62, 62, 63,
68, 70, 72, 72, 72, 74, 75, 75, 78, 80,, 81, 85, 86, 86, 92, 95, 97.
Marks of
60 students
(class Interval) Tally Marks Frequency
0-9 ∣∣∣∣. 4
10-19 7
20-29 5
30-39 10
40-49 5
50-59 8
60-69 5
70-79 8
80-89 5
90-99 3
Total frequency = 60