document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077776>Question 1077776</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8.1 #8<BR>\n" );
document.write( "Suppose a geyser has a mean time between eruptions of 72 minutes. Let the interval of time between the eruptions be normally distributed with standard deviation 14 minutes.<BR>\n" );
document.write( "What is the probability that a randomly selected time interval between eruptions is longer than 79 &#8203;minutes?\r<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 #692285 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=692285\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "z>7/14=1/2<BR>\n" );
document.write( "that probability is 0.3085 </SPAN>\n" );
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