document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=509110>Question 509110</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Test scores in a college course have a mean of 68.7 and a standard deviation of 20.6. What percentage of 25 students chosen at random passed the test?<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 #341261 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=341261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Test scores in a college course have a mean of 68.7 and a standard deviation of 20.6. What percentage of 25 students chosen at random passed the test?<BR>\n" );
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document.write( "Assuming that 70 or greater is quired to pass,<BR>\n" );
document.write( "z(70) = (70-68.7)/20.6 = 0.0631<BR>\n" );
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document.write( "P(x >= 70) = P(z > 0.0631) = 0.4748 = 47.48% passed<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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