Friday, April 23, 2010

Arithmetic mean

In our everyday life, we use a lot of statistics without even knowing it. Calculating an arithmetic mean is very common. For e.g. average age of students in a class, average income in a company.

Arithmetic mean can be calculated by the formula .

What this formula says is that we give equal weightage to each of our values. We can rewrite this formula in the following form to make this clear.







No comments:

Post a Comment