document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=504814>Question 504814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A quality control engineer tests the quality of produced computers. Suppose that 5% of computers have defects, and defects occur independently of each other. Find the probability that the engineer has to test at least 5 computers in order to find a defective one. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339716 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=339716\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A quality control engineer tests the quality of produced computers.<BR>\n" );
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document.write( "Suppose that 5% of computers have defects, and defects occur independently of each other. Find the probability that the engineer has to test at least 5 computers in order to find a defective one.<BR>\n" );
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document.write( "P(1st 4 are without defect) = 0.95^4 = 0.8145<BR>\n" );
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document.write( "P(test at least 5 to find a defective one) = 0.8145<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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