Among a random sample of adults whose heights ranged between 60 inches (5 feet) and 78 inches, the mean weight was linearly related to height. The intercept was -130 kg and the slope was 3 kg/inch. The proportion of variability in weight that was explained by the simple linear regression model was 49%. What is the appropriate interpretation for the estimate of the slope? O A 1 inch increase in height is associated with a 36 kg decrease in weight, on average. 0 A 1 foot increase in height is associated with a 3 kg increase in weight, on average. 0 A 1 foot increase in height is associated with a 36 kg increase in weight, on average. 0 A 1 inch increase in height causes a 3 kg increase in weight, on average