document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1121795>Question 1121795</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average weekly rent for flats is $250. Suppose the rents are normally distributed with a standard deviation of $40. What is the probability that a randomly chosen flat rents for between $220 and $320 per week?\r<BR>\n" );
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document.write( "Give your answer to 3 decimal places.\r<BR>\n" );
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document.write( "Thank you so much in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737838 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=737838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "For the first, (220-250)/40 or -0.75<BR>\n" );
document.write( "For the second, (320-250)/40 or +1.75<BR>\n" );
document.write( "Probability z is between -0.75 and +1.75 is 0.733 </SPAN>\n" );
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