document.write( "Question 507256: A shipment of 9 typewriters contains 3 that are defective.Find the probability that a sample of size four, drawn from the nine, will not contain a defective typewriter. \n" ); document.write( "
Algebra.Com's Answer #340408 by stanbon(75887)\"\" \"About 
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A shipment of 9 typewriters contains 3 that are defective.Find the probability that a sample of size four, drawn from the nine, will not contain a defective typewriter.
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\n" ); document.write( "Binomial Problem with n = 4 and P(defect) = 1/3 : p(no defect) = 2/3
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\n" ); document.write( "P(4 will not contain a defective) = 1 - P(all good) = 1 - 6C4/9C4
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\n" ); document.write( "= 1 - 0.1190
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\n" ); document.write( "= 0.8810
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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