Question 10 A biologist is interested in predicting the brain weight, in grams, of a certain species of bird from its body weight. A least squares regression line was fit to data collected from a random sample of 28 birds of this species. The equation of the line is y = 3.79 + 0.08x where y is the predicted brain weight and x is the body weight of the bird. Which of the following gives the best interpretation of the slope of the regression line? A .There is an increase of 0.08 grams in the predicted brain weight of this species of bird for every increase of 1 gram in body weight. B There is an increase of 0.08 grams in the predicted body weight of this species of bird for every increase of 1 gram in brain weight. C There is an increase of 3.79 grams in the predicted brain weight of this species of bird for every increase of 1 gram in body weight. D There is an increase of 3.79 grams in the predicted body weight of this species of bird for every increase of 1 gram in brain weight. E Approximately 8% of the variability in brain weight is predicted by its linear relationship with body weight