Question

In grouped frequency data, the span of each interval is

• A. Difference between upper limit and lower limit of each range.
• B. Sum of upper limit and the lower limit of the data set.

Answer 1

The correct option is A Difference between upper limit and lower limit of each range.

Consider the following grouped frequency data:


In this given grouped data, the upper limit of class interval $(10-20)$ is $20$ and lower limit is $10$. So, the span of this interval is $20-10=10$.

Similarly, for interval $(20-30)$ is $10$.

Hence, in grouped frequency data, the span of each interval is the difference between the upper limit and lower limit of each interval.

So, option (a) correct.