document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1169247>Question 1169247</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that the breaking strength of a rope (in pounds) is normally distributed, with a mean of 100 pounds and a standard deviation of 15. What is the probability that a certain rope will break before being subjected to 120 pounds? (You may need to use the standard normal distribution table. Round your answer to four decimal places.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #793895 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=793895\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> look at the left of the curve with mean 100 and sd 15 and x of 120<BR>\n" );
document.write( "z<(x-mean)/sd<BR>\n" );
document.write( "< 1.33<BR>\n" );
document.write( "probability rope will break is prob z < 1.33<BR>\n" );
document.write( "=0.9082 </SPAN>\n" );
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