The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

JEFF: Putter's under pressure, Janine. He needs to turn this around quick. JANINE: He sure does, Jeff. Let's look at how the other player scored on this hole. JEFF: Let’s start with the ‘mean’ score.

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...