document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=304692>Question 304692</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how it solves this problem?\r<BR>\n" );
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document.write( "5. Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12 \r<BR>\n" );
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document.write( "a. What proportion of people have disastolic  blood pressure less than 90% ?\r<BR>\n" );
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document.write( "b. What proportion have diatolic blood pressure between 80 and 90% ?\r<BR>\n" );
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document.write( "c. If someone  has a diatolic blood pressure of 100. what is percentile does represent? <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 #218218 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=218218\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can use this tool to help you calculate the answer to this problem.\r<BR>\n" );
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document.write( "<a  rel=nofollow HREF= \"http://davidmlane.com/hyperstat/z_table.html\" target = \"_blank\">http://davidmlane.com/hyperstat/z_table.html</a>\r<BR>\n" );
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document.write( "In order to use the tool, you need to have java enabled on you computer.\r<BR>\n" );
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document.write( "To answer these questions, you would use the top graph and enter a mean of 85 and a standard deviation of 12 where indicated.\r<BR>\n" );
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document.write( "I believe your question should be worded as follows:\r<BR>\n" );
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document.write( "My answers are below each of the parts of the question.\r<BR>\n" );
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document.write( "5. Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12.\r<BR>\n" );
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document.write( "a. What proportion of people have diastolic blood pressure less than 90?\r<BR>\n" );
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document.write( "The proportion of the people with diastolic blood pressure less than 90 would be .661539 or 66.13539%.\r<BR>\n" );
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document.write( "Using the tool, you would select \"below\" and enter a 90 in the box.\r<BR>\n" );
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document.write( "b. What proportion have diastolic blood pressure between 80 and 90?\r<BR>\n" );
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document.write( "The proportion of the people with diastolic blood pressure between 80 and 90 would be .323078 or 32.3078%\r<BR>\n" );
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document.write( "Using the tool, you would select \"between\" and enter 80 in the first box and 90 in the second box.\r<BR>\n" );
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document.write( "c. If someone  has a diastolic blood pressure of 100. what percentile does that represent? \r<BR>\n" );
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document.write( "The proportion of the people with diastolic blood pressure of 100 and above would be .105650 or 10.5650%\r<BR>\n" );
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document.write( "Using the tool, you would select \"above\" and enter 90 in the box.\r<BR>\n" );
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document.write( "A picture of the three graphs is shown below:\r<BR>\n" );
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document.write( "<font color = \"red\"><IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/problems/304692.jpg\" alt = \"***** picture not found *****\" /></font>\r<BR>\n" );
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document.write( "Without the use of this tool, or a tool like it, you would need to access the Z-Tables and manually calculate the proportions required.\r<BR>\n" );
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document.write( "This is considerably more cumbersome and definitely not recommended unless you absolutely have to use the tables.\r<BR>\n" );
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document.write( "In that case, you may want to look at the lesson referenced below:\r<BR>\n" );
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document.write( "<a  rel=nofollow HREF= \"http://www.algebra.com/algebra/homework/Probability-and-statistics/change-this-name28108.lesson\" target = \"_blank\">http://www.algebra.com/algebra/homework/Probability-and-statistics/change-this-name28108.lesson</a> </SPAN>\n" );
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