Question

(a) for these 24 vehicles, as weight increases, fuel efficiency tends to select (b) for these 24 vehicles, there is select correlation between select (c) using the line of best fit, we would predict that a vehicle weighing select would have a fuel efficiency of approximately select

Explanation:

Step1: Analyze the scatter - plot trend

As we can see from the scatter - plot, as the weight (x - axis) increases, the fuel efficiency (y - axis) decreases.

Step2: Determine the correlation type

Since the fuel efficiency decreases as the weight increases, there is a negative correlation between weight and fuel efficiency.

Step3: Predict using the line of best fit

To predict the fuel efficiency for a given weight using the line of best fit, we would need the equation of the line of best fit. But generally, we can estimate from the graph.

Answer:

(a) decrease
(b) negative
(c) (No specific weight value given, so we can't give a numerical answer. But the general process is to use the equation of the line of best fit to predict the fuel - efficiency for a given weight value)