Question

In the class interval \[30 - 40\] , \[30\] is
(a) Frequency
(b) Range
(c) Upper Limit
(d) Lower Limit

Answer 1

Hint: To solve this question, we will first explain the definition of class interval and also define the terms used in the definition. And then we will see what the first term in the class interval is called. So, according to this question, we will see what is \[30\] in the given class interval.

Complete step by step answer:
Let’s first define the term class interval.
Class interval is defined as the range in which data are grouped while arranging them in statistics and it is also defined as the difference of upper-class limit and lower-class limit.
Now we will define the terms that are used in the definition of class interval. i.e., Upper limit and Lower limit.
Basically, the upper limit is the highest value of the class interval and lower limit is the lowest value of class interval.
So, according to the question
The given class interval is \[30 - 40\]
Here the lowest value is \[30\] which is known as the lower limit and the highest value is \[40\] which is known as the upper limit.

So, the correct answer is “Option d”.

Note:
We can also solve this question by considering the options separately. Let us consider options one by one.
(a) Frequency- Frequency is the number of times a particular observation occurs in a given data.
(b) Range- Range is the difference between the highest and the lowest value of the frequency for a given frequency distribution.
(c) Upper Limit- Upper limit is the highest value of the class interval.
So, the answer is Lower Limit. It is defined as the lowest value of the class interval. And in the given interval \[30\] is the lowest value. Hence, option (d) is the right answer.