document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1090454>Question 1090454</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if 5% if screws produced by a machine are defective ,wat are the mean & standard deviation respectively in total of 500 screws?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #705223 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=705223\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  if 5% of screws produced by a machine are defective ,what are the mean & standard deviation respectively in total of 500 screws?<BR>\n" );
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document.write( "Binomial events::<BR>\n" );
document.write( "mean = n*p = 500*0.05 = 25<BR>\n" );
document.write( "std = sqrt(npq) = sqrt(25*0.95) = 4.87<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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