document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042167>Question 1042167</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A set of data has a mean value of 15 with a standard deviation of 3. Determine the mean and standard deviation if<BR>\n" );
document.write( "a) each data value is increased by 7 (2 marks)<BR>\n" );
document.write( "b) each data value is decreased by 5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657101 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=657101\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A set of data has a mean value of 15 with a standard deviation of 3. Determine the mean and standard deviation if<BR>\n" );
document.write( "a) each data value is increased by 7 (2 marks)<BR>\n" );
document.write( "The data set moves 7 to the right::<BR>\n" );
document.write( "mean = 15+7 = 22<BR>\n" );
document.write( "spread has not changed:: std = 3<BR>\n" );
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document.write( "b) each data value is decreased by 5 <BR>\n" );
document.write( "The data set moves 5 to the left::<BR>\n" );
document.write( "mean = 15-5 = 10<BR>\n" );
document.write( "spread has not changed:: std = 3<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );