Target Practice

Lyrics © 2015 by Larry Lesser, music by Dominic Dousa

Salary is the variable whose data I tabulate;
Mean is the parameter I want to estimate.

When I calculate its counterpart
From the sample now in hand,
I wonder if on average,
The bullseye's where it lands!

It's unbiased 'cause on average
the estimate will land
Centered at the target
of the population parameter.