## Note:

This is based on the old idea that "normal" body temperature is
98.6 degrees Fahrenheit. This is exactly 37 degrees Celsius:

C = (5/9) * (F - 32)
= (5/9) * (98.6 - 32)
= (5/9) * (66.6)
= (5/9) * (66 + 3/5)
= (5/9) * (333/5)
= 333/9
= 37

I'd heard before that it's actually questionable whether 37 is
really the average. Alert reader Russell Schulz points out that a
1992 article in the Journal of the American Medical Association found
the actual average to be about 98.2. But I won't tell if you won't.
:-)

By the way, the 1992 JAMA article was based on a study of 148
people -- a multiple of you-know-what.

Here's
a related article from 1996, which discusses using the dataset
from the 1992 JAMA article to teach some statistical concepts.