### Possible Answer

It is least affected by fluctuations of sampling. Demerits: The arithmetic mean is highly affected by extreme values. It cannot average the ratios and precentages ... - read more

(A) Merits: 1. It can be easily calculated; and can be easily understood. It is the reason that it is the most used measure of central tendency. 2. As every item is ... - read more

Please vote if the answer you were given helped you or not, thats the best way to improve our algorithm. You can also submit an answer or search documents about what is arithmetic mean and merits and demerits.