document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=724280>Question 724280</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If we inspect envelopes by drawing 4 of them without replacement from every lot of 100, what is the probability of getting 4 clean envelopes although 3% of them contain spots? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #443698 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=443698\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If we inspect envelopes by drawing 4 of them without replacement from every lot of 100, what is the probability of getting 4 clean envelopes although 3% of them contain spots?<BR>\n" );
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document.write( "# of ways to succeed: 97C4<BR>\n" );
document.write( "# of possible results: 100C4<BR>\n" );
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document.write( "P(4 clean) = 97C4/100C4 = 0.8836<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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