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.

Averages are used all the time in finance, usually to justify performance (above average'). However, as an investor, youshould realise there are several ways to calculate an average.The three most ...