document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=47461>Question 47461</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 40 students enrolled in three areas of study.<BR>\n" );
document.write( "23 students in music<BR>\n" );
document.write( "25 students in math<BR>\n" );
document.write( "27 students in comp. science\r<BR>\n" );
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document.write( "7 took mathematics and music only<BR>\n" );
document.write( "5 took music and computer science only<BR>\n" );
document.write( "6 took math and comp. sci. only<BR>\n" );
document.write( "7 took all three subjects\r<BR>\n" );
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document.write( "What is the probability a student took exactly one of the three courses? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31333 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=31333\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     40 students enrolled in three areas of study.<BR>\n" );
document.write( "LET US USE A ^ B TO SHOW A INTERSECTION B<BR>\n" );
document.write( "    23 students in music(S..SAY)<BR>\n" );
document.write( "    25 students in math(M..SAY)<BR>\n" );
document.write( "    27 students in comp. science(C...SAY)<BR>\n" );
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document.write( " 7 took mathematics and music  DISABLED_event_only= M&S ONLY<BR>\n" );
document.write( "    5 took music and computer science  DISABLED_event_only= S&C ONLY<BR>\n" );
document.write( "    6 took math and comp. sci.  DISABLED_event_only= M&C ONLY <BR>\n" );
document.write( "    7 took all three subjects=M&C&S=7<BR>\n" );
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document.write( "HENCE THOSE WHO TOOK MATHS  DISABLED_event_ONLY=  M-M&S ONLY-M&C ONLY - M&S&C=25-7-6-7=5  <BR>\n" );
document.write( "THOSE WHO TOOK MUSIC  DISABLED_event_ONLY=  S-S&M ONLY-S&C ONLY-S&C&M=23-7-5-7=4<BR>\n" );
document.write( "THOSE WHO TOOK COMPUTRERS  DISABLED_event_ONLY= C-C&M ONLY-C&S ONLY-C&S&M=27-6-5-7=9<BR>\n" );
document.write( "HENCE PROBABILITY OF HAVING THOSE WHO TOOK ONLY ONE SUBJECT=(5+4+9)/40=18/40=9/20\r<BR>\n" );
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document.write( "    What is the probability a student took exactly one of the three courses?\r<BR>\n" );
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document.write( "You may edit the question. Maybe convert formulae to the same formula notatio </SPAN>\n" );
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