Find the modal class for the following distribution.
Marks. Number of students
Below 10. ---------- 3
Below 20. ---------- 12
Below 30. ---------- 27
Below 40. ---------- 57
Below 50. ---------- 75
Below 60. ---------- 80
Answers
The modal class is 30 - 40.
Step-by-step explanation:
The given table:
Marks. Number of students Frequency
(Class interval) Cumulative Frequency (f)
0 - 10 3 3
10 - 20 12 9
20 - 30 27 15
30 - 40 57 30
40 - 50 75 18
50 - 60 80 5
As the class interval 30 - 40 has maximum frequency,
∴ The modal class = 30 - 40
Hence, the modal class is 30 - 40.
Step-by-step explanation:
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