document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=984817>Question 984817</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It's Math 243 (Intro Probabil & Stats). \r<BR>\n" );
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document.write( "Question: There are 36 students in a class. If the results of the final exam are normally distributed with mean 85 and standard deviation 9, then how many students would you expect to receive an A grade (90% - 100%)?<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 #605674 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=605674\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Question: There are 36 students in a class. If the results of the final exam are normally distributed with mean 85 and standard deviation 9, then how many students would you expect to receive an A grade (90% - 100%)?\r<BR>\n" );
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document.write( "Solution:<BR>\n" );
document.write( "Use TI calculator or Excel to get the normal probability.<BR>\n" );
document.write( "TI Calculator:<BR>\n" );
document.write( "normalcdf(90,100,85,9) = 0.241467<BR>\n" );
document.write( "Multiply the probability by 36.\r<BR>\n" );
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document.write( "(0.241467)(36) = 8.69 or about 9 students </SPAN>\n" );
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