document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=933052>Question 933052</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The scores on a sociology exam are normally distributed with a mean of 70 and a standard deviation of 10. If the instructor assigns As to 15%, Bs to 25%, Cs to 40%, Ds to 15%, Fs to 5% of the class, find the cutoff point for grades A-D. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #566576 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=566576\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The scores on a sociology exam are normally distributed with a mean of 70 and a standard deviation of 10. If the instructor assigns As to 15%, Bs to 25%, Cs to 40%, Ds to 15%, Fs to 5% of the class, find the cutoff point for grades A-D.<BR>\n" );
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document.write( "I'll do the score for A::<BR>\n" );
document.write( "invNorm(0.85) = 1.0364<BR>\n" );
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document.write( "Corresponding score using x = z*s + u<BR>\n" );
document.write( "Cut-off score = 1.0364*10+70 = 80.36<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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