document.write( "Question 867206: A shelf in the Metro Department Store contains 80 colored ink cartridges for a popular ink-jet printer. 5 of these cartridges are defective.
\n" ); document.write( "(a) If a customer selects 3 of these cartridges at random from a shelf, what is the probability that they are all defective? (Round your answer to five decimal places.)\r
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\n" ); document.write( "\n" ); document.write( "(b) If a customer selects 3 of these cartridges at random from a shelf, what is the probability that at least 1 is defective? (Round your answer to three decimal places.)
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Algebra.Com's Answer #522834 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!
p(def) = 5/80 = 1/16, n = 3
\n" ); document.write( "P(sll def) = (1/16)^3
\n" ); document.write( "P(at least one def) = 1 - P(none) = 1-(15/16)^3 \n" ); document.write( "

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