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The weights (in kg) of 30 students of a class are:
39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46, 36, 35, 34, 39, 43, 32, 37, 29, 26. Prepare a frequency distribution table using one class interval as (30 - 35), 35 not included.
(i) Which class has the least frequency?
(ii) Which class has the maximum frequency?

Solution:

Class Interval	Frequency
25-30	2
30-35	7
35-40	11
40-45	7
45-50	3

(i) The least frequency is the class in 25-30

(ii) The class interval 35-40 has the maximum frequency

✦ Try This: The weights (in kg) of 30 students of a class are:

29, 30, 16, 28, 40, 32, 33, 44, 23, 33, 41, 45, 36, 48, 47, 31, 20, 39, 21, 41, 36, 36, 25, 34, 29, 43, 42, 37, 39, 26. Prepare a frequency distribution table using one class interval as (30 - 35), 35 not included. (i) Which class has the least frequency, (ii) Which class has the maximum frequency?

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 5

NCERT Exemplar Class 8 Maths Chapter 2 Problem 95

The weights (in kg) of 30 students of a class are: 39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46, 36, 35, 34, 39, 43, 32, 37, 29, 26. Prepare a frequency distribution table using one class interval as (30 - 35), 35 not included. (i) Which class has the least frequency, (ii) Which class has the maximum frequency?

Summary:

(i) The least frequency is the class in 25-30, (ii) The class interval 35-40 has the maximum frequency

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