document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1191671>Question 1191671</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question 5 options:<BR>\n" );
document.write( "The average monthly mortgage payment including principal and interest is $982 in the United States. If the standard deviation is approximately $180 and the mortgage payments are approximately normally distributed, find the probabilities. \r<BR>\n" );
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document.write( "a) The selected monthly payment is more than $1175.\r<BR>\n" );
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document.write( "P(X > 1175) = \r<BR>\n" );
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document.write( "b) The selected monthly payment is between $700 and $1000.\r<BR>\n" );
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document.write( "P(700 < X < 1000) = \r<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 #823509 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=823509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "so z>(193/180)=1.072<BR>\n" );
document.write( "that probability is 0.1418<BR>\n" );
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document.write( "This is z=-282/180 and z=18/180 for probability 0.4816<BR>\n" );
document.write( "check with calculator 2ndVARS(700,1000,982,180)ENTER for 0.4812. The difference is that I rounded -282,180 and the calculator doesn't round until the end. Ask how much they want the z-value rounded to.<BR>\n" );
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