document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=488814>Question 488814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the random variable z is the standard normal score and a > 0, is it true that P(z < -a) = P(z > a)?  Why or why not? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #333475 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=333475\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the random variable z is the standard normal score and a > 0, is it true that P(z < -a) = P(z > a)? Why or why not?<BR>\n" );
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document.write( "Ans: Yes, because of the symmetry of the normal curve.<BR>\n" );
document.write( "P(x > a) = P(x < -a)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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