document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=807378>Question 807378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best reate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 11 Southwest flights and observing whether they arrive on time. (a)  Find the probability that exactly 4 flights arrive on time.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #486287 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=486287\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x=.80, y=.20, n=11<BR>\n" );
document.write( "11C4=330<BR>\n" );
document.write( "330x^4y^7<BR>\n" );
document.write( "=.00173<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed<BR>\n" );
document.write( " </SPAN>\n" );
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