document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=255892>Question 255892</A>: <I><SPAN STYLE=\"word-break: break-all;\"> To control the quality of their product, the bright-light company inspects three light bulbs out of each batch of ten bulbs manufactured. If a defective bulb is found, the batch is discarded. Suppose a batch contains two defective bulbs. What is the probability that the batch will be discarded? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #188098 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=188098\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To control the quality of their product, the bright-light company inspects three light bulbs out of each batch of ten bulbs manufactured. <BR>\n" );
document.write( "If a defective bulb is found, the batch is discarded. Suppose a batch contains two defective bulbs. What is the probability that the batch will be discarded?<BR>\n" );
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document.write( "P(no defective bulb in set of 3 from 10) = 8C3/10C3 = 56/120<BR>\n" );
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document.write( "P(you find a defective bulb when you select 3 from 10)<BR>\n" );
document.write( "= 1 - p(you find no defective) <BR>\n" );
document.write( "= 1- (56/120) <BR>\n" );
document.write( "= 64/120 <BR>\n" );
document.write( "= 8/15<BR>\n" );
document.write( "================================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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