document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=530870>Question 530870</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a statistics probability problem that I need help with:\r<BR>\n" );
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document.write( "I am writing the problem in words since it does not show up correctly as a formula on the preview screen\r<BR>\n" );
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document.write( "the probability P (negative c is smaller than z is smaller than c) = 0.4648\r<BR>\n" );
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document.write( "I visualize that the area on a bell curve goes from the left (negative) point C through 0 (zero) to point c on the right (positive) side. Is that correct?\r<BR>\n" );
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document.write( "That would mean I calculate it this way <BR>\n" );
document.write( "1 - 0.4648=0.4647 (which is the area outside)<BR>\n" );
document.write( "then 0.4647: 2=0.2324 which is according to the table approx 0.6.\r<BR>\n" );
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document.write( "Is this correct? Is there a faster way to get there?\r<BR>\n" );
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document.write( "Thanks in advance<BR>\n" );
document.write( "enyacleo<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 #350326 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=350326\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P (negative c is smaller than z is smaller than c) = 0.4648 <BR>\n" );
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document.write( "Draw the picture.<BR>\n" );
document.write( "Since 0.2324 area is to the left of the mean,<BR>\n" );
document.write( "there is a left tail of 0.5-0.2324 = 0.2676<BR>\n" );
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document.write( "Then c = invNorm(0.2676) = -0.6201<BR>\n" );
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document.write( "Ans: -0.6201 < z < +0.6201<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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