document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=254801>Question 254801</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a local cellular phone area, company A accounts for 70% of the cellular phone market, while company B accounts for the remaining 30% if the market. Of the cellular calls made with company A, 2% of the calls will have some sort of interference, while 3% of the cellular calls with company B will have interference.\r<BR>\n" );
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document.write( "Given that the randomly selected cellular calls is one that has interference, what is the probability it came from company B? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #187188 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=187188\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> look at 1000 calls\r<BR>\n" );
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document.write( "700 from A ___ 14 with interference\r<BR>\n" );
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document.write( "300 from B ___ 9 with interference\r<BR>\n" );
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document.write( "23 calls with interference\r<BR>\n" );
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document.write( "probability of interference call being B ___ 9/23 </SPAN>\n" );
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