the scatter plot shows the weight and fuel efficiency for each of 21 vehicles. also shown is the line of…

the scatter plot shows the weight and fuel efficiency for each of 21 vehicles. also shown is the line of best fit for the data. fill in the blanks below. (a) for these 21 vehicles, as weight increases, fuel efficiency tends to (choose one) (b) for these 21 vehicles, there is (choose one) correlation between weight and fuel efficiency. (c) using the line of best fit, we would predict that a vehicle weighing 3000 pounds would have a fuel efficiency of approximately (choose one)

the scatter plot shows the weight and fuel efficiency for each of 21 vehicles. also shown is the line of best fit for the data. fill in the blanks below. (a) for these 21 vehicles, as weight increases, fuel efficiency tends to (choose one) (b) for these 21 vehicles, there is (choose one) correlation between weight and fuel efficiency. (c) using the line of best fit, we would predict that a vehicle weighing 3000 pounds would have a fuel efficiency of approximately (choose one)

Answer

Explanation:

Step1: Analyze the scatter - plot trend

As we move from left to right (weight increasing) on the x - axis, the points on the scatter - plot and the line of best fit move downwards on the y - axis (fuel efficiency decreasing).

Step2: Determine the correlation type

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

Step3: Predict fuel efficiency for 3000 pounds

Locate 3000 on the x - axis (weight), then move vertically up to the line of best fit and then horizontally to the y - axis (fuel efficiency). By visual inspection, it is around 30 miles per gallon.

Answer:

(a) Decrease (b) Negative (c) 30 miles per gallon