document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=266359>Question 266359</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A recent study of 300 patients found that of 100 alcoholic patients, 87 had elevated cholesterol levels, and of 200 nonalcoholic patients, 43 had elevated cholesterol levels. If a patient is selected at random, find the probability that the patient is the following:\r<BR>\n" );
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document.write( "a. An alcoholic with elevated cholesterol<BR>\n" );
document.write( "b. A nonalcoholic<BR>\n" );
document.write( "c. A nonalcoholic with nonelevated cholesterol level.\r<BR>\n" );
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document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195764 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=195764\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A recent study of 300 patients found that of 100 alcoholic patients, 87 had elevated cholesterol levels, and of 200 nonalcoholic patients, 43 had elevated cholesterol levels. If a patient is selected at random, find the probability that the patient is the following:<BR>\n" );
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document.write( "Procedure:<BR>\n" );
document.write( "1st: I sketched a contingency table with 2 rows(alc and non-alc) and <BR>\n" );
document.write( "2 columns (high choles and low choles)<BR>\n" );
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document.write( "2nd: I put the given numbers into the contingency table and filled <BR>\n" );
document.write( "in the missing numbers.<BR>\n" );
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document.write( "Find the probability that the patient is the following:<BR>\n" );
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document.write( "a. An alcoholic with elevated cholesterol: 87/300<BR>\n" );
document.write( "b. A nonalcoholic: 200/300<BR>\n" );
document.write( "c. A nonalcoholic with nonelevated cholesterol level: 43/300<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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