Merits of arithmetic mean:

1) It is the simplest form of average.

2) It is easy to find and understand.

3) To find arithmetic mean we only need sum of all the observations and number of observations.

Demerits of the arithmetic mean:

1) It is highly affected by extreme values.

2) It provides a high value on having one very large value in the data set.

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1) It is the simplest form of average.

2) It is easy to find and understand.

3) To find arithmetic mean we only need sum of all the observations and number of observations.

Demerits of the arithmetic mean:

1) It is highly affected by extreme values.

2) It provides a high value on having one very large value in the data set.

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