document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998593>Question 998593</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The reading speed of sixth-grade students is approximately normally distributed with a mean speed of 125 words per minute and a standard deviation of 24 words per minute. A school psychiatrist wants to determine reading rates for \"unusual\" students (both slow and fast). Determine the reading rates of the middle 95% of all sixth-grade students. What are the cutoff points for the \"unusual\" readers (the outer 5%)?<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 #616362 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616362\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plus or minus two sigmas will encompass 95% of a normal distribution.<BR>\n" );
document.write( "Two sigmas is 48 words per minute.\r<BR>\n" );
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document.write( "Slow readers will be below 125-48 = 77 wpm.<BR>\n" );
document.write( "Fast readers will be above 125+48 = 173 wpm.<BR>\n" );
document.write( "The range for the 95% of readers is 77-173 wpm. </SPAN>\n" );
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