document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157660>Question 1157660</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 78% of all commuters take the train into the city. If 12 works are selected at random what is the probability that less than 7 commute by train<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 #780531 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=780531\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> tedious to do by hand because need to compute several probabilities<BR>\n" );
document.write( "on calculator it is binomcdf (12,.78,6) for <7, 6 is the highest value.<BR>\n" );
document.write( "That probability is 0.0304\r<BR>\n" );
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document.write( "This can be checked by looking at the probability of 6, 5, 4.<BR>\n" );
document.write( "for 6, it is 0.0236 (calc binompdf (12,.78,6)<BR>\n" );
document.write( "for 5, it is 0.0057<BR>\n" );
document.write( "for 4  it is 0.0010 </SPAN>\n" );
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