document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167603>Question 1167603</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It is reported that 77% of workers aged 16 and over drive to work alone. Choose 8 workers at random. Find the probability that\r<BR>\n" );
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document.write( "a. All drive to work alone\r<BR>\n" );
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document.write( "b. More than one half drive to work alone\r<BR>\n" );
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document.write( "c. Exactly 3 drive to work alone </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792229 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=792229\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a. This is .77^8=0.1236<BR>\n" );
document.write( "c. exactly 3 is 8C3*.77^3*.23^5=0.0165<BR>\n" );
document.write( "b. look at 0,1,2, and 3 and subtract that sum from 1.<BR>\n" );
document.write( "have 3<BR>\n" );
document.write( "for 1 it is 8*0.77*0.23^7=0.0002<BR>\n" );
document.write( "for 0 it is <0.0001 (.23^8)<BR>\n" );
document.write( "for 2 it is 28*0.77^2*0.23^6=0.0024<BR>\n" );
document.write( "for 4 it is 70*0.77^4*0.23^4=0.0689\r<BR>\n" );
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document.write( "for <=4 it is probability 0.0880, so the answer is the complement or 0.9120<BR>\n" );
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