document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=921798>Question 921798</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to prepare for my test and I have absolutely no idea how to do this!\r<BR>\n" );
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document.write( "Each month, an American household generates an average of 28 pounds of newspaper for garbage or recycling. Assume the variable is approximately normally distributed and the standard deviation is 2 pounds. If a household is selected at random, find the probability of its generating:<BR>\n" );
document.write( "a.	Between 27 and 31 pounds per month<BR>\n" );
document.write( "b.	More than 30.2 pounds per month<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 #559214 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=559214\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> given: an average of 28 pounds\r<BR>\n" );
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document.write( "a.<BR>\n" );
document.write( "Find  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > values corresponding to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=27 ALIGN=MIDDLE  ALT=\"27\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=31 ALIGN=MIDDLE  ALT=\"31\"   DISABLED_style= \"max-width:90%; height:auto;\" >:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%2827-28%29%2F2=-1%2F2=-0.5 ALIGN=MIDDLE  ALT=\"z=%2827-28%29%2F2=-1%2F2=-0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%2831-28%29%2F2=3%2F2=1.5 ALIGN=MIDDLE  ALT=\"z=%2831-28%29%2F2=3%2F2=1.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Find the area between <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+-0.5 ALIGN=MIDDLE  ALT=\"z+=+-0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=+1.5 ALIGN=MIDDLE  ALT=\"z=+1.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Table E gives us an area of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.9332-0.30=0.6247 ALIGN=MIDDLE  ALT=\"0.9332-0.30=0.6247\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> The probability is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=62.47 ALIGN=MIDDLE  ALT=\"62.47\"   DISABLED_style= \"max-width:90%; height:auto;\" >%\r<BR>\n" );
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document.write( "b.\r<BR>\n" );
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document.write( "Find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > values corresponding to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30.2 ALIGN=MIDDLE  ALT=\"30.2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%2830.2-28%29%2F2=2.2%2F2=1.1 ALIGN=MIDDLE  ALT=\"z=%2830.2-28%29%2F2=2.2%2F2=1.1\"   DISABLED_style= \"max-width:90%; height:auto;\" >  Find the area to the right  of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=1.1 ALIGN=MIDDLE  ALT=\"z+=1.1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "it gives you an area of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.1357 ALIGN=MIDDLE  ALT=\"0.1357\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> The probability is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13.57 ALIGN=MIDDLE  ALT=\"13.57\"   DISABLED_style= \"max-width:90%; height:auto;\" >%\r<BR>\n" );
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