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2014-05-28T15:32:58+08:00

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The total number of shapes is 12 +7 +20 +16 +5 = 60
The total number of shapes with ≥5 sides is 12 +7 +20 = 39

The probability that she chooses a shape w/ ≥5 sides is  \frac{39}{60}  \frac{13}{20} = 65%
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