document.write( "Question 1192618: Before a DVD leaves the factory, it is given a quality control check. The probabilities that a DVD contains 0, 1, or 2 defects are 0.90, 0.06, and 0.04, respectively. In a sample of 12 recorders, ﬁnd the probability that 8 have 0 defects, 3 have 1 defect, and 1 has 2 defects. \n" ); document.write( "

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\n" ); document.write( "Before a DVD leaves the factory, it is given a quality control check.
\n" ); document.write( "The probabilities that a DVD contains 0, 1, or 2 defects are 0.90, 0.06, and 0.04, respectively.
\n" ); document.write( "In a sample of 12 recorders, ﬁnd the probability that 8 have 0 defects, 3 have 1 defect, and 1 has 2 defects.
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document.write( "Use the trinomial distribution formula\r\n" );
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document.write( "    P =  =  = 0.007364.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "On trinomial distribution, see and learn from your textbook or from these Internet sources \r
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\n" ); document.write( "\n" ); document.write( "https://online.stat.psu.edu/stat414/lesson/17/17.3\r
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\n" ); document.write( "\n" ); document.write( "https://en.wikipedia.org/wiki/Multinomial_distribution\r
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