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Linear Regression Christmas Trees The following table gives the total number of live Christmas trees sold in millions in the United States from 2004 to 2011 Source Statista com 2 0 27 1 4 28 6 t number of years since 2004 C total number of Christmas trees sold in the U S in millions 1 Use the TABLE to determine the number of live Christmas trees sold in the year 2008 In 2008 there were approximately million live Christmas trees sold in the U S 2 Determine the linear regression equation that models the set of data above Use the indicated variables and proper function notation Round to the nearest hundredth as needed C 6 28 2 7 27 30 8 3 Interpret the meaning of the slope of your rounded regression model From 2004 to 2011 the number of Christmas trees sold in the U S increased by approximately trees each year 4 Use the REGRESSION EQUATION to determine the number of live Christmas trees sold in the year 2008 In 2008 there were approximately million live Christmas trees sold in the U S million 5 Your answers to parts 1 and 4 should be different Why is this the case The data are linear The regression equation gives a more precise answer than the value from the table The data are not perfectly linear The regression equation gives only an approximation of the actual value not the exact value The data are not perfectly linear The regression equation gives a more precise answer than the value from the table The data are linear The regression equation gives only an approximation of the actual value not the exact value

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