document.write( "Question 1191993: if 20% of bulbs manufactured by a company are defective what is the average of defective bulbs in batch of 400 bulbs?? \n" ); document.write( "

Algebra.Com's Answer #823864 by Boreal(15235) $\"\"$ $\"About$

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The expected value of defective balls is np=400(0.2)=80 \n" ); document.write( "

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