1 A quiz was conducted by a group of students as a part of their environment awareness programme. The masks
obtained by them is represented by the data shown below. Construct the frequency distribution table for the data
represented. Find the modal class of the data.
1
Marks
Number of students
88
8 8
12
Less than 10
Less than 20
Less than 30
24
3)
37
31
Less than 40
56
69
7,076 ot
nu 4
31
Less than 50
Less than 60
76
(
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