document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1020223>Question 1020223</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A manufacturer makes two models of an item:modelI,which accounts for 80% of unit sales,and modelI I,which accounts for 20% of unit sales.Because of defects,the manufacturer has to replace (or exchange) 10% of its modelI and 18% of its modelI I.If a model is selected at random,find the probability that it will be defective. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #636133 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=636133\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P(defective) = P(defective AND model I)+ P(defective AND model II)\r<BR>\n" );
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document.write( "= P(defective|model I)*P(model I) + P(defective|model II)*P(model II)\r<BR>\n" );
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document.write( "= 0.10*0.80 + 0.18*0.20\r<BR>\n" );
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document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%280.116%29 ALIGN=MIDDLE  ALT=\"highlight%280.116%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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