document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=506351>Question 506351</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1260 who were over the age of 25, and 1035 of them were high school graduates. <BR>\n" );
document.write( "(a)  Find the mean and standard deviation for the number of high school graduates in groups of 1260 Americans over the age of 25.\r<BR>\n" );
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document.write( "Mean = <BR>\n" );
document.write( "Standard deviation = <BR>\n" );
document.write( "Is that county result of 1035 unusually high, or low, or neither?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340123 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=340123\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. <BR>\n" );
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document.write( "A survey of randomly selected residents of certain county included 1260 who were over the age of 25, and 1035 of them were high school graduates.<BR>\n" );
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document.write( "(a) Find the mean and standard deviation for the number of high school graduates in groups of 1260 Americans over the age of 25. <BR>\n" );
document.write( "Mean = np = 1260*0.82 = 1033.2<BR>\n" );
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document.write( "Standard deviation = sqrt[npq] = sqrt(1260*0.82*0.18) = 13.64<BR>\n" );
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document.write( "Is that county result of 1035 unusually high, or low, or neither? <BR>\n" );
document.write( "Neither<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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