document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1079069>Question 1079069</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A multiple choice test has 10 questions. Each question has four answer choices. <BR>\n" );
document.write( "a. What is the probability a student randomly guesses the answers and gets exactly six questions correct? <BR>\n" );
document.write( "b. Is getting exactly 10 questions correct the same probability as getting exactly zero correct? Explain. <BR>\n" );
document.write( "c. Describe the steps needed to calculate the probability of getting at least six questions correct if the student randomly guesses.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #693423 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=693423\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For 6 questions, it is 10C6, the number of ways it can happen (210)*0.25^6*0.75^4, and this is 0.0162<BR>\n" );
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document.write( "To get 10 questions correct randomly guessing is 0.75^10.<BR>\n" );
document.write( "To get 10 questions incorrect randomly guessing is 0.25^10.  They are different. </SPAN>\n" );
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