Percentages: The most useful statistics ever invented

2010 "Eighty percent of success is showing up." - Woody Allen “Baseball is ninety percent mental and the other half is physical.” - Yogi Berra "Genius is one percent inspiration and ninety-nine percent perspiration." - Thomas Edison Preface. You know what a percentage is. 2 out of 4 is 50%. 3 is 25% of 12. Etc. But do you know enough about ... ................
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