document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170394>Question 170394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is bothering me, I answered a math problem, This one<BR>\n" );
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document.write( "Bill has been given a 20 question mulitple choice test. He hasnt attended class recently, and there are 5 answers to each question, but only one is correct...what is the probability that he will answer more than five questions on the test correctly?..explain your answer<BR>\n" );
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document.write( "I think the answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F15625+ ALIGN=MIDDLE  ALT=\"+1%2F15625+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, because you multiply the probability of getting one right, and multiply it 6 times,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%281%2F5%29%5E6+ ALIGN=MIDDLE  ALT=\"+%281%2F5%29%5E6+\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29+ ALIGN=MIDDLE  ALT=\"+%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29%281%2F5%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Am I right? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125780 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=125780\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Bill has been given a 20 question mulitple choice test. He hasnt attended class recently, and there are 5 answers to each question, but only one is correct...what is the probability that he will answer more than five questions on the test correctly?..explain your answer<BR>\n" );
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document.write( "No, that is not the correct answer.<BR>\n" );
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document.write( "It is a binomial problem with n= 20, p = 1/5; x>5<BR>\n" );
document.write( "n is the number of trials<BR>\n" );
document.write( "p is the probability of success on each trial<BR>\n" );
document.write( "x is the number of successes<BR>\n" );
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document.write( "P(x>5) = 1 - binomcdf(20,(1/5),4) = 0.37035...<BR>\n" );
document.write( "This, from using a TI-83 calculator.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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