document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=439056>Question 439056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the class average on a test is 85, with a standard deviation of 3.8, find the probability that a student received at least 76 on the test </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303476 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=303476\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the class average on a test is 85, with a standard deviation of 3.8, find the probability that a student received at least 76 on the test<BR>\n" );
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document.write( "z(76) = (76-85)/3.8 = -2.3684<BR>\n" );
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document.write( "P(x>= 76) = P(z>= -2.3684) = 0.9911<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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