document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269777>Question 269777</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a very short quiz has one multiple choice question with five possible choices a b c d e and one true false question\r<BR>\n" );
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document.write( "what is the probability that only one of the two answers is correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197789 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=197789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a very short quiz has one multiple choice question with five possible choices a b c d e and one true false question <BR>\n" );
document.write( "what is the probability that only one of the two answers is correct?<BR>\n" );
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document.write( "P(get multiple question right) = 1/5<BR>\n" );
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document.write( "P(true/false right) = 1/2<BR>\n" );
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document.write( "P(both right) = 1/2*1/5 = 1/10<BR>\n" );
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document.write( "P(both wrong) = (1/2)(4/5) = 4/10<BR>\n" );
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document.write( "P(one of two correct = 1 - [both wrong or both right]<BR>\n" );
document.write( "= 1 - [4/10+1/10]<BR>\n" );
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document.write( "= 1/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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