document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1044181>Question 1044181</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I asked this question previously but I mistakenly asked incorrectly. I received a response from a very kind gentleman but I need to clarify the question. It goes as follows (my apology);\r<BR>\n" );
document.write( "\n" );
document.write( "Brittany plans to take Pre-Calculus, English 12, Physics, Physical Education, Economics, and Anthropology in her senior year. She hopes to have Pre-Calculus and Physics in the morning. What is the probability that her first two classes will be Pre-Calculus or Physics? Stephanie solves the problem incorrectly. In which line does she FIRST make an error?<BR>\n" );
document.write( " line 1: P(6,2) = 6!/4! = 30<BR>\n" );
document.write( " line 2: P(6,4) = 6!/2! =360<BR>\n" );
document.write( " line 3: P (6,2) * P(6,4) = 30*360=10,800<BR>\n" );
document.write( " line 4: P(6,6) = 6!/0! - 720<BR>\n" );
document.write( " line 5: s/s+f = 720/10,800 = 66.7%\r<BR>\n" );
document.write( "\n" );
document.write( "A)Line 1; Correction: P(2,2) = 2!/0! = 2<BR>\n" );
document.write( "B)Line 2; Correction: P(4,4) = 4!/0! = 24<BR>\n" );
document.write( "C)Line 4; Correction: P(6,6) = 6!*6! = 518,400<BR>\n" );
document.write( "D)Line 5; Correction: s/s+f = 10,800/720 = 15%\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #659454 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=659454\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Not very clear since the \"lines\" do not have any explanation, but Line 1 appears to be incorrect, since when counting the total number of schedules, the total number of schedules is simply 6! = 720.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "You may have typo-ed since 720/10800 is not 66.7%. The solution in general is very hard to understand. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );