document.write( "Question 660794: A diskette manufacturer determined 3% of its diskettes are defective. 2 disks were sold.
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Algebra.Com's Answer #411359 by math-vortex(648)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Hi, there--\r\n" );
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document.write( "Problem: \r\n" );
document.write( "A diskette manufacturer determined 3% of its diskettes are defective. 2 disks were sold. \r\n" );
document.write( "a)What is the probability that both disks sold are defective? \r\n" );
document.write( "b)What is the probability that neither one of the disks is defective?\r\n" );
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document.write( "Answer:\r\n" );
document.write( "These problems are a little bit like coin flip problems. (You flip two coins. What's the \r\n" );
document.write( "probability  that both are heads? both are tails?)\r\n" );
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document.write( "a) What is the probability that both diskettes sold are defective?\r\n" );
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document.write( "The probability of choosing a defective diskette is 0.03 (3%).\r\n" );
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document.write( "The total probabilities must add to 1.00. Since there are only two choices, defective or non-\r\n" );
document.write( "defective, the probability of choosing a non-defective diskette is 0.97 (97%) since \r\n" );
document.write( "0.03+0.97=1.00.\r\n" );
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document.write( "The probability of selling two defective diskettes is (0.03)(0.03) = 0.0009 (very unlikely!)\r\n" );
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document.write( "b) What is the probability that neither one of the diskettes is defective?\r\n" );
document.write( "The probability of selling two non-defective diskettes is (0.97)(0.97) = 0.9409 (quite likely)\r\n" );
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document.write( "Hope this helps! If you still have questions about this, feel free to email me.\r\n" );
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document.write( "Mrs. Figgy\r\n" );
document.write( "math.in.the.vortex@gmail.com\r\n" );
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