“When is Santa’s birthday?”

March
Oops. Just missed him. (Image by flavijus via Flickr)

This depends on who you think Santa is. Let’s look at our top Santa contenders from yesterday.

So there you have it. Two unknowns, one unknowable, and two votes for the middle of March.

Now if you’ll excuse me while I make some quick calculations on my computer….

proc means p1 p25 p50 p75 p99 data=santafile;
class region;
var age_year;
weight gravitas;
run;

Looks like Santa’s birthday is most likely March 15, with a 95% confidence interval of 3.16 (year 0) – 3.14 (year +1).

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