document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=619395>Question 619395</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Assume the random variable x is normally distributed with mean 81 and standard deviation 5. Find the indicated probablilty.   P(68<x<76)\r<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 #389616 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=389616\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assume the random variable x is normally distributed with mean 81 and standard deviation 5. Find the indicated probablilty.   <BR>\n" );
document.write( "P(68 < x <76)<BR>\n" );
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document.write( "z(68) = (68-81)/5 = -13/5<BR>\n" );
document.write( "z(76) = (76-81)/5 = -1<BR>\n" );
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document.write( "P(68 < x < 76) <BR>\n" );
document.write( "= P(-13/5 < z < -1) <BR>\n" );
document.write( "= normalcdf(-13/5,-1) <BR>\n" );
document.write( "= 0.1540<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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