document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1035130>Question 1035130</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a lighting company obtains 80% of their light bulbs  from company A that has a defect rate of 0.05 and the rest from company B with a defect rate of 0.10. If a light bulb  is defective what is the probability it came from company A? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #649904 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=649904\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(A) = 0.80, p(B) = 0.20, p(D|A) = 0.05, p(non-D|A) = 0.95\r<BR>\n" );
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document.write( "and p(D|B) = 0.10, p(non-D|B) = 0.90\r<BR>\n" );
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document.write( "==> p(A|D) = P(A and D)/p(D) = (p(D|A)*p(A))/p(D) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.05%2A0.80%29%2F%280.05%2A0.80+%2B+0.20%2A0.10%29+=+2%2F3 ALIGN=MIDDLE  ALT=\"%280.05%2A0.80%29%2F%280.05%2A0.80+%2B+0.20%2A0.10%29+=+2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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