From 1970 to 2014, the Institute for American Values did research on the happiness of married couples. The percentage of married persons who say they are "very happy" with their marriages can be estimated by the following regression equation: y=67.81-0.16x where y= percentage of married persons who say they are "very happy" with their marriages and x=# of years since 1970. What percent of married persons would you estimate were "very happy" with their marriages in 2010?A sample of 12 different cigarette brands are shown in the table. The amount of tar and nicotine, measured in milligrams per cigarette, is shown for each brand. Brand Tar Nicotine American Filter 16 1.2 Benson & Hedges 16 1.2 Camel 16 1.0 Capri 9 0.8 Carlton 1 0.1 Cartier Vendome 8 0.8 Chelsea 10 0.8 GPC Approved 16 1.0 Hi-Lite 14 1.0 Kent 13 1.0 Lucky Strike 13 1.1 Malibu 15 1.2 Fill in the following blanks. Round all numerical values to 2 decimal points. The equation of the regression line is y=.17+.06x The correlation coefficient is .94 The coefficient of determination is .88