document.write( "Question 923304: A shipment contains 100 items, 20 of which are defective. You randomly select 10 items and test them. What are the chances that you will find at least one of the defective items in your sample? \n" ); document.write( "

Algebra.Com's Answer #559947 by ewatrrr(24785) $\"\"$ $\"About$

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p(def) = 20/100 = .2, n = 10
\n" ); document.write( "P(at least one) = 1 - P(none) = 1-(.8)^10 \n" ); document.write( "

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