Hello, actionman777!

I have a set of 3 portfolios, and they have their own average annual returns.

Now how do I calculate the average return for all the portfolios combined?

In general, we musttake the average of a set of averages.not

We have three portfolios, and their average returns: .

We need a lot more information . . .

. .

. .

. .

We must know all six of these values.

The overall average is: .