Question

11. Consider the marks obtained by 20 students
out of 50 marks of Class IX of a school in a
test
42, 40, 44, 7, 8, 30, 32, 37, 15, 11,
48, 42, 49, 22, 23, 4, 10, 16, 35, 36
Present this data as a grouped data in
inclusive form.

Answer 1

Total number of values =50

Range = Highest value − Lowest value

=98−8=90

Let us divide the given data into 10 classes.

∴ Length of the Class interval =

Number of class interval

Range

=

10

90

=10

Hope this helps!

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