Question: what are the merits and demerits of range?
Answer: • Range= Largest value (L) – Smallest Value (S)
• Coefficient of Range= (L- S)/ (L   S)
Merits of Range:
It is simple to understand and easy to calculate.
It is less time consuming.
Demerits of Range:
It is not based on each and every item of the distribution.
It is very much affected by the extreme values.