document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=344440>Question 344440</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If 4 factories in a group of 20 factories in a community are violatig environmental regulations and 6 are randomly selected for inspection, what is the probability that none of the violators will be selected?\r<BR>\n" );
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document.write( "What formula do I even begin to solve this problem with? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246376 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=246376\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If 4 factories in a group of 20 factories in a community are violatig environmental regulations and 6 are randomly selected for inspection, what is the probability that none of the violators will be selected? <BR>\n" );
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document.write( "The probability a randomly selected factory is not<BR>\n" );
document.write( "a violator is 16/20 = 4/5<BR>\n" );
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document.write( "The probability 6 of 6 are not violators is (4/5)^6 = 0.2621<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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