document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=651553>Question 651553</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello. Any help on this one is greatly appreciated.\r<BR>\n" );
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document.write( "Given that x is a normally distributed random variable with a mean of 28 and a standard deviation of 7, find the following probabilities: <BR>\n" );
document.write( "P (x < 48)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #407711 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=407711\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given that x is a normally distributed random variable with a mean of 28 and a standard deviation of 7, find the following probabilities: <BR>\n" );
document.write( "P (x < 48) <BR>\n" );
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document.write( "z(48) = (48-28)/7 = 20/7 <BR>\n" );
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document.write( "P(x < 48) = P(z < 20/7) = normalcdf(-100,20/7) = 0.9979<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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