document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131590>Question 1131590</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 26.23 minutes. Suppose that you have already been waiting for one hour for a taxi. What is the probability that one arrives within the next 9 minutes?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(Please enter your answers as fractions in lowest terms or as decimals rounded to four decimal places. Thank you!)\r<BR>\n" );
document.write( "\n" );
document.write( "  \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #748677 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=748677\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean is 1/26.23 or 0.0381 minutes<BR>\n" );
document.write( "in the next 9 minutes is still the relevant time<BR>\n" );
document.write( "P(x<9) is 1-e^(-9*0.0381)=0.2903.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-5%2C50%2C-1.5%2C1.5%2Ce%5E%28-0.0381x%29%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-5%2C50%2C-1.5%2C1.5%2Ce%5E%28-0.0381x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );