Here's a timely explanation of one way math & geometric mean are used in real life....just in time for Valentine's Day!
Happy Valentine's Day to all of you!
Update: Discussed this with my class last period...they immediately wanted to know if I used eHarmony or Match.com (despite the fact that they know I'm in a long term relationship) and which was better. They decided they should probably test both to figure out which one worked better. I guess I'm glad they're trying to test their conjectures? Scientific thinking at its finest.