*Lyrics & Music © 2016 Amy Adler*

I'm looking at the ages of my living family

I'm 29, my mom's 50, and Dad is 53

The median is 50, and the mean is 44

But if I added in my grandma, the mean would be much more.

My grandma, she is 80, and now our group has four

The median is different when we brought her aboard

When this happens, it's the halfway point between the middle folks

It's only 51.5, but the mean jumps up real close.

Let's try a bigger group now, let's add my cousins, too

They're 4, 13, and 16, 29, and 32

Since we added younger people to the group to calculate

Will the mean and median change much, what do you postulate?

Our new median is 29, much lower than the last

But the mean is now 34, it dropped, but not as fast

'Cause my grandma and my parents keep the mean declining slow

Yet more younger than the older, made the median drop down low.

When you have a group of people who are mostly young in age

The mean, it is affected by a few who are quite gray

Since the median is simply the middle of the crew

It doesn't change if Grandma were 100 or 82.