document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1095602>Question 1095602</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A poll is given, showing 25% are in favor of a new building project.\r<BR>\n" );
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document.write( " If 9 people are chosen at random, what is the probability that exactly 7 of them favor the new building project? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #710124 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=710124\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is 9C7, the number of ways can choose 7 from 9 multiplied by 0.25^7*0.75^2<BR>\n" );
document.write( "=36*0.25^7*0.75^2=0.0012<BR>\n" );
document.write( "The expected value is 2.25 with a sd of about 1.3, so a low probability is expected. </SPAN>\n" );
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