Given below is a frequency distribution table. Read it and answer the questions that follow:
Class Interval Frequency
10 - 20 5
20 - 30 10
30 - 40 4
40 - 50 15
50 - 60 12
(a) What is the lower limit of the second class interval?
(b) What is the upper limit of the last class interval?
(c) What is the frequency of the third class?
(d) Which interval has a frequency of 10?
(e) Which interval has the lowest frequency?
(f) What is the class size?
Solution:
(a) The second class is 20-30 ; lower limit is 20
(b) The last class is 50-60 ; upper limit is 60
(c) From the chart, the frequency of third class is 4
(d) The class interval 20-30 has frequency 10
(e) The class interval 30-40 has lowest frequency
(f) The size of the class is the difference between the upper limit and lower limit of a particular class
Say, in 10-20 class, the size is 10.
✦ Try This: Given below is a frequency distribution table. Read it and answer the questions that follow:
(a) What is the lower limit of the third class interval?
(b) What is the upper limit of the second class interval?
(c) What is the frequency of the fourth class?
(d) Which interval has a frequency of 12?
(e) Which interval has the highest frequency?
(f) What is the class size?
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 5
NCERT Exemplar Class 8 Maths Chapter 2 Problem 82
Given below is a frequency distribution table. Read it and answer the questions that follow: (a) What is the lower limit of the second class interval, (b) What is the upper limit of the last class interval, (c) What is the frequency of the third class, (d) Which interval has a frequency of 10, (e) Which interval has the lowest frequency, (f) What is the class size?
Summary:
(a) The second class is 20-30 ; lower limit is 20, (b) The last class is 50-60 ; upper limit is 60, (c) From the chart, the frequency of third class is 4, (d) The class interval 20-30 has frequency 10, (e) The class interval 30-40 has lowest frequency, (f) The size of the class is 10.
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