The concentration of alcohol and beer varies widely. A low alcohol beer might be only one percent alcohol by volume which is one percent ABV. Alcohol beer might be as much as 14% alcohol by volume which is 14% ABV a level that surpasses many varieties of wine. The equation of the trend line is R equals 3.1+0.088 what is the growth rate of the trendlines equation include units what is the practical interpretation of the growth rate