Suppose the govemment would like to investigate the relationship between the engine size of sedans and the miles per gallon (MPG) they get. The accomparying tablo shows the engine size in cuble liters and rated miles por gallon for a selection of sedans, Consplete parts a through e below. Click the icon to view the data table. a. Calculate the sample covariance. sxy= (Round to three decimal places as needed.) b. Caiculate the sample correlation coefficient. txy= (Round to three decimal ploces as needed. the covariance or the correlation coefficient? Explain. ationship but not the strength of the relationship: lationship but not the strength of the relabionship. Suppose the govemment would like to investigate the relationship between the engine size of sedans and the miles per gallon (MPG) they get. The accomparying tablo shows the engine size in cuble liters and rated miles por gallon for a selection of sedans, Consplete parts a through e below. Click the icon to view the data table. a. Calculate the sample covariance. sxy= (Round to three decimal places as needed.) b. Caiculate the sample correlation coefficient. txy= (Round to three decimal ploces as needed. the covariance or the correlation coefficient? Explain. ationship but not the strength of the relationship: lationship but not the strength of the relabionship