document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=80681>Question 80681</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I sent this one before but made some misstakes sorry. In the question u is for population mean and o is for Population standards deviation thank you .\r<BR>\n" );
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document.write( "Let X  be a normally distributed random variable with u=100  and o=15			 .  The probability that   is between 80 and 120 is (to the 			nearest whole percent)<BR>\n" );
document.write( "		a.  8 % 	b.   82 %	c.  91% 	d. answer not listed<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 #57829 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=57829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In the question u is for population mean and o is for Population standards deviation thank you .\r<BR>\n" );
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document.write( "Let X  be a normally distributed random variable with u=100  and o=15			The probability that   is between 80 and 120 is (to the 			nearest whole percent)<BR>\n" );
document.write( "	a.  8 % 	b.   82 %	c.  91% 	d. answer not listed<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "If you have a Ti calulator use normalcdf(80,120,100,15) = 0.8175...<BR>\n" );
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document.write( "If you do not find the z-scores of 80 and of 120:<BR>\n" );
document.write( "z(80)=(80-100)/15 = -1.333333<BR>\n" );
document.write( "z(120)=(120-100)/15 = 1.333333<BR>\n" );
document.write( "Probability you want is normalcdf(-1.33333,1,33333)=0.8175...<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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