document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=310744>Question 310744</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11.  If 69.5 percent of the students received grades of C or better, what is the minimum score of those students who received grades of C or better?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #222321 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=222321\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11. If 69.5 percent of the students received grades of C or better, what is the minimum score of those students who received grades of C or better? <BR>\n" );
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document.write( "Find the z-value that has a right tail of 0.695.<BR>\n" );
document.write( "invNorm(0.3050) = -0.5101<BR>\n" );
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document.write( "Find the corresponding grade:<BR>\n" );
document.write( "x = zs + u<BR>\n" );
document.write( "x = -0.5101*11+73<BR>\n" );
document.write( "x = 67.39<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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