document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120595>Question 1120595</A>: <I><SPAN STYLE=\"word-break: break-all;\"> &#8203;39% of a certain&#8203; country's voters think that it is too easy to vote in their country. You randomly select 12 likely voters. Find the probability that the number of likely voters who think that it is too easy to vote is&#8203; \r<BR>\n" );
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document.write( "(a) exactly&#8203; three, (b) at least&#8203; four, (c) less than eight\r<BR>\n" );
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document.write( "(a) P(3)=____________ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737075 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=737075\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For 3, it is 12C3*0.39^3*0.61^9=0.1526\r<BR>\n" );
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document.write( "At least 4 is 1- prob (3), (2),1, and 0.<BR>\n" );
document.write( "This is 1-0.2472=0.7528\r<BR>\n" );
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document.write( "8 voters has probability of 0.03667<BR>\n" );
document.write( "9 probability is 0.0104<BR>\n" );
document.write( "10 prob. is 0.0020<BR>\n" );
document.write( "11 prob is 0.0002<BR>\n" );
document.write( "12 prob is 0<BR>\n" );
document.write( "The answer is 1-0.0493=0.9507,<BR>\n" );
document.write( "same as binomcdf(12,0.39,7)<BR>\n" );
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