document.write( "Question 911589: A quality control inspector has drawn a sample of 12 light bulbs from a recent production lot. Suppose that 20% of the bulbs in the lot are defective. What is the standard deviation of the number of defective bulbs in the sample? \n" ); document.write( "
Algebra.Com's Answer #553194 by ewatrrr(24785)\"\" \"About 
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p(def) = .20, n = 12, sd = \"sqrt%28.20%2A.80%2A12%29\"= 1.3856 \n" ); document.write( "
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