document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=369622>Question 369622</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A test consists of 10 true-or-false questions. If a student randomly chooses answers for each question, find the probability that the student: <BR>\n" );
document.write( "Answers at least 1 question correctly. (3 decimals) \r<BR>\n" );
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document.write( "I got 2^10 = 1,024 \r<BR>\n" );
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document.write( "I did this way, but does not work, very close... \r<BR>\n" );
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document.write( "C(10,1)/1024 = \r<BR>\n" );
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document.write( "10/1024 = .00976 \r<BR>\n" );
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document.write( "The answer is 0.999 but how? \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #263399 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=263399\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=.5 probability of getting a problem wrong.<BR>\n" );
document.write( "1- probability that he gets them all wrong = the probability that the student answers at least 1 question correctly.<BR>\n" );
document.write( "1-.5^10=.9990 <BR>\n" );
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document.write( "Ed </SPAN>\n" );
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