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22 July, 05:13

A model builder has 30 pieces of balsa wood in a box. Four pieces are 15 inches long, 10 pieces are 12 inches long, and the rest are 8 inches long. What is the probability the builder will pull an 8-inch piece from the box without looking?

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  1. 22 July, 05:29
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    There is about a 16.5% chance to pull an 8-inch piece, this is theoretical probability though.
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