document.write( "Question 859825: A sample of data has a standard deviation of 79. If you were to multiply all of the scores in the data set by factor of 68, what would the new standard deviation be?
\n" ); document.write( "How do I figure this problem? Do you multiply the standard deviation by the factor of 68?
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Algebra.Com's Answer #517975 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
i believe so.
\n" ); document.write( "check out the following:
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document.write( "data:			\r\n" );
document.write( "N	A	B	B/A\r\n" );
document.write( "1	5	25	5\r\n" );
document.write( "2	10	50	5\r\n" );
document.write( "3	15	75	5\r\n" );
document.write( "4	20	100	5\r\n" );
document.write( "5	25	125	5\r\n" );
document.write( "6	30	150	5\r\n" );
document.write( "7	35	175	5\r\n" );
document.write( "statistics:\r\n" );
document.write( "                        A                 B              C			\r\n" );
document.write( "mean	                20	          100	         5\r\n" );
document.write( "variance	        116.6666667	  2916.666667	 25\r\n" );
document.write( "standard deviation	10.8012345	  54.00617249	 5\r\n" );
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\n" ); document.write( "data in column A has been multiplied by 5 times in column B.
\n" ); document.write( "The mean of B is 5 times the mean of A.
\n" ); document.write( "The variance of B is 25 times the variance of A.
\n" ); document.write( "The standard deviation of B is 5 times the variance of A.\r
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\n" ); document.write( "\n" ); document.write( "Easiest way to find out the relationships is to create a very simple data set and then apply the measure and see the impact on the statistics.\r
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\n" ); document.write( "\n" ); document.write( "In the above, I created a simple data set and then multiplied that data set bgy 5 and then looked at the impact on the statistics.\r
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\n" ); document.write( "\n" ); document.write( "There is some information somewhere about the impacts of doing different things with data sets but I was unable to find it.\r
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