document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1187979>Question 1187979</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The distribution of head circumference for full term newborn female infants is approximately normal with a mean of 33.8 cm and a standard deviation of 1.2 cm.\r<BR>\n" );
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document.write( "For full term newborn female infants, determine the head circumference of a female infant such that 75% of the female infants have their head circumferences less than this female infant. Enter your answer using one decimal place.\r<BR>\n" );
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document.write( "I know I have to use the formula x=mean + z(SD) but idk how to find the z score... </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819004 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=819004\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can use the table to find the z-score by looking under the probability of \".7500\" the 75th percentile, which is what the question means.<BR>\n" );
document.write( "Also on calculator for 2ndVARS 3invnorm (0.75,0,1) ENTER or +0.67<BR>\n" );
document.write( "z=(x-mean)/sd<BR>\n" );
document.write( "0.67=(x-33.8)/1.2<BR>\n" );
document.write( "0.80=x-33.8<BR>\n" );
document.write( "x=34.6 cm<BR>\n" );
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