The dart index. Take a page of stock quotes from a newspaper. Mount it on a piece of cardboard and throw 10 darts randomly at the page. Record the 10 stocks you hit. Now get a newspaper that is exactly six months old and look up the prices of those 10 stocks. Suppose you bought 100 shares of each of those 10 stocks six months ago. How would you do if you sold them all today?
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EBK THE HEART OF MATHEMATICS: AN INVITA
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