document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829024>Question 829024</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Batteries for a radio are thought to be normally distributed with a mean life of 160 hours and a standard deviation of 30 hours.  <BR>\n" );
document.write( "What is the probability that an battery has a life less than 170 hours? <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 #499634 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=499634\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%28x-m%29%2Fs=%28170-160%29%2F30 ALIGN=MIDDLE  ALT=\"z=%28x-m%29%2Fs=%28170-160%29%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "From a normal distribution function,<BR>\n" );
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