Question

magan decides to research the relationship between the length in inches and the weight of a certain species of catfish. he measures the length and weight of a number of specimens he catches then throws back into the water. after plotting all his data, he draws a line of best fit. what does the slope of the line represent? the expected length of a catfish that weighs 1 pound. the rate of change in the expected length of the catfish over its weight. the expected change in weight of a catfish for each additional inch in length. the expected weight of a catfish that is 1 inch long.

Explanation:

The slope of a line in a linear - regression context (line of best fit) represents the rate of change of the dependent variable (y - variable, here catfish weight) with respect to the independent variable (x - variable, here catfish length). So, it shows how much the weight is expected to change for a one - unit change in length.

Answer:

The expected change in weight of a catfish for each additional inch in length.