document.write( "Question 647632: in an industrial unit, certain machine producing washers, the probability of an item is 0.01. calculate the mean and standard deviation for tthe distribution of defective washers, when the total number is 500 \n" ); document.write( "
Algebra.Com's Answer #406320 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "Mean:\r
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\n" ); document.write( "\n" ); document.write( "\"mu+=+np\"\r
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\n" ); document.write( "\n" ); document.write( "\"mu+=+%28500%29%2A%280.01%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"mu+=+5\"\r
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\n" ); document.write( "\n" ); document.write( "Standard Deviation\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+sqrt%28np%281-p%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+sqrt%28%28500%29%2A%280.01%29%2A%281-0.01%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+sqrt%28%28500%29%2A%280.01%29%2A%280.99%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+sqrt%285%2A%280.99%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+sqrt%284.95%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"sigma+=+2.2248595461287\"
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