document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1170601>Question 1170601</A>: <I><SPAN STYLE=\"word-break: break-all;\">   <BR>\n" );
document.write( "In the most recent election, 20% of all eligible college students voted. If a random sample of 10 students were surveyed,                                                                <BR>\n" );
document.write( "a)Find the probability that exactly half of them voted in the election? <BR>\n" );
document.write( "b)Find the probability that none of them voted in the election? <BR>\n" );
document.write( "c)Find the probability that at least one of them voted in the election? \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 #795470 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=795470\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> for b, it is 0.8^10=0.1074<BR>\n" );
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document.write( "for c probability at least 1 is 1- prob (0)=0.8926<BR>\n" );
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document.write( "half of them is 10C5*0.2^5*0.8^5=0.0264 probability<BR>\n" );
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