document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1200458>Question 1200458</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this probability question<BR>\n" );
document.write( "The shelf life of a product has a mean, ū=10days and a standard deviation of 3 days. Assuming a normal distribution, determine the probability of a product lasting for <BR>\n" );
document.write( "a) between 7 days and 13days<BR>\n" );
document.write( "b) fewer than 7days\r<BR>\n" );
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document.write( "Thank you very much  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #834603 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=834603\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean is 10<BR>\n" );
document.write( "standard deviation is 3<BR>\n" );
document.write( "calculator at <a  rel=nofollow HREF= \"https://davidmlane.com/hyperstat/z_table.html\" target = \"_blank\">https://davidmlane.com/hyperstat/z_table.html</a> can solve this easily.\r<BR>\n" );
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document.write( "a) between 7 days and 13 days\r<BR>\n" );
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document.write( "probability is equal to .6827.\r<BR>\n" );
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document.write( "b) fewer than 7days\r<BR>\n" );
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document.write( "proabbility is equal to .1587.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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