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Mean

Lyric copyright ©2011 by Lawrence Mark Lesser.
May sing to the tune of "Mean" (Taylor Swift)

You.......with your words like mean & mode & symbols that you use against me.
Mu........stands for a population mean and x bar for the sample.
Who.....knows what symbol to use for other measures of data location.
You......pickin' each time the mean.
But it can get pulled off by just one single point,
And you don't know what you don't know....

CHORUS:
Sometimes data have a real asymmetry
Or values that are really quite extreme.
In those cases, better use the median
If the middle is what you need - that's not gonna be the mean!

That won't be the mean with outliers, just forget it,
Do you see just what I mean & mean & mean & mean? (repeat chorus)