document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157814>Question 1157814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The diameters of steel disks produced in a plant are normally distributed with a mean of 2.5 cm and standard deviation of .02 cm. <BR>\n" );
document.write( "Find the following probabilities that a disk picked at random has a diameter:<BR>\n" );
document.write( "•	Smaller than 2.58 cm <BR>\n" );
document.write( "•	Between 2.54 and 2.58 cm  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #780710 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=780710\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "(2.58-2.5)/0.02 is +4<BR>\n" );
document.write( "probability of z<4 is 1.0 to four decimal places.\r<BR>\n" );
document.write( "\n" );
document.write( "between 2.54 and 2.58 will be the probability z is between 2 and 4<BR>\n" );
document.write( " go to 2nd VARS 2 for normalcdf (you almost never want normalpdf)<BR>\n" );
document.write( "enter 2,4<BR>\n" );
document.write( "hit enter'<BR>\n" );
document.write( "0.0228 is the probability.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );