Do you remember when the most exotic statistic on the back of a baseball card was slugging percentage? I do. When slugging percentage first appeared on Topps cards in 1981, it was one of those statistics that had to be explained. As a young fan, I was used to automatically understanding every stat. Batting average and earned run average were the only measures that took a little calculating and they were easily grasped. But slugging percentage -- which I'm quite sure I first saw in The Sporting News -- took a few attempts. It wasn't mentioned much during games on TV and didn't appear in boxscores or on the backs of baseball cards. Looking at it now, it was remarkably easy to grasp, too. It's merely dividing total at-bats into total bases. Like so: I added it to my repertoire in no time. Unfortunately, using statistics to support my arguments is no longer an option. I left numbers behind for letters a long time ago, and while I was away, the numbers e...
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