The 50-50-90 rule: Anytime you have a 50-50 chance of getting something right, there’s a 90% p...

The 50-50-90 rule: Anytime you have a 50-50 chance of getting something right, there’s a 90% probability you’ll get it wrong.

Andy Rooney

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Source needed: There's evidence to suggest that this quote is attributed to the author, though no official sources or credible evidence could be found or has yet to be added to this page
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Writer, humorist, television personality

January 14th, 1919 - November 4th, 2011