document.write( "Question 1155812: A stationary store has decided to accept a large shipment of ball-point pens if an inspection of 17 randomly selected pens yields no more than two defective pens.
\n" ); document.write( "(a) Find the probability that this shipment is accepted if 5% of the total shipment is defective. (Use 3 decimal places.)\r
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\n" ); document.write( "\n" ); document.write( "(b) Find the probability that this shipment is not accepted if 15% of the total shipment is defective. (Use 3 decimal places.)
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Algebra.Com's Answer #778522 by Boreal(15235)\"\" \"About 
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Probability of 0 defective is .95^17=0.4181
\n" ); document.write( "probability of 1 defective is 17 (17 ways) .95^16*.05=0.3741
\n" ); document.write( "for 2 it is 17C2*,95^15*.05^2=0.1575\r
\n" ); document.write( "\n" ); document.write( "Those add to 0.9497 or 0.950.\r
\n" ); document.write( "\n" ); document.write( "For the next one, use .85 and .15\r
\n" ); document.write( "\n" ); document.write( ".85^17=0.0631
\n" ); document.write( "17*.85^16*.15=0.1893
\n" ); document.write( "136*.85^15*.15^2=0.2673\r
\n" ); document.write( "\n" ); document.write( "That sum is 0.5197
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