document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=680636>Question 680636</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve: Suppose that x=time to complete a standardized test has a normal distribution with mean=84 and standard deviation=10. find the probability that it takes 1 hour to finish 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 #422411 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=422411\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please help me solve: Suppose that x=time to complete a standardized test has a normal distribution with mean=84 and standard deviation=10. find the probability that it takes 1 hour to finish the test.<BR>\n" );
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document.write( "1 hour = 60 min<BR>\n" );
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document.write( "z(60) = (60-84)/10 = -2.4<BR>\n" );
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document.write( "P(x > 60 min) = P(z > -2.4) = 0.9918<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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