document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41886>Question 41886</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The time a group of high school students arrive home from school each day was found to be normally distributed.  The mean time was 3:15 PM and the times had a standard deviation of 15 minutes.  What is the probability that a student chosen at random arrives home from school before 2:30 PM? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #27056 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=27056\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well 2:30 pm represents three sigmas below the mean...so look up on your normal distribution table a z-score of -3.00 and find the probability of .0013.<BR>\n" );
document.write( "Thus the probability is .13% that a student chosen at random arrives before 2:30 pm. </SPAN>\n" );
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