How to guess the number of candies in a jar

by | Jul 27, 2009 07:00 AM ET

So you are at a store or a school or a carnival and they are doing the old "guess the number of candies in a jar" contest. How can you improve the odds of success? You can try using the physics principle of packing fractions. "You need to know the volume of one candy and the volume of the jar" along with the packing fraction. Like this:

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