Unfortunately, the mix of families in my town is changing.

So the ethnic mix of the country is changing faster than at any time in our history.

It was late October, and the view and mix of people changed each day.

These shows are still popular, but the network's mix has changed.

And the mix of what American companies own abroad is changing.

"The mix of business is changing and the Japanese could change with it."

With the addition of Pilon, the mix changed ever so slightly tonight.

But the mix of jobs has changed, probably for the worse.

"The only thing holding prices back is the fact that mix has changed," he said.

Note that the mix of qualities did not change, average values would give the correct index.