There is a correlation between the size of a vehicle and the fuel efficiency. Which of the following statements are true? Check all that apply.

A value of
could be a reasonable slope for the function equation.

There is causation between the size of the vehicle and the fuel efficiency.

There is no causation between the size of the vehicle and the fuel efficiency.

The correlation between the two quantities should be fairly strong to strong.

1 answer

To evaluate the statements regarding the correlation between the size of a vehicle and its fuel efficiency, let's analyze each one:

  1. A value of could be a reasonable slope for the function equation.

    • This statement is incomplete as it does not specify a value for the slope. In general, a negative slope would make sense in this context, as larger vehicles typically have lower fuel efficiency.
  2. There is causation between the size of the vehicle and the fuel efficiency.

    • This statement is false. Correlation does not imply causation. While larger vehicles may generally be less fuel-efficient, this does not mean that size directly causes lower fuel efficiency. Other factors could be at play.
  3. There is no causation between the size of the vehicle and the fuel efficiency.

    • This statement is true. As mentioned earlier, correlation does not equate to causation, so we cannot conclude that the size of the vehicle causes changes in fuel efficiency.
  4. The correlation between the two quantities should be fairly strong to strong.

    • This statement is likely true. While the strength of the correlation can vary based on specific data, it is reasonable to expect that there would be a significant correlation between vehicle size and fuel efficiency, as larger vehicles tend to have lower efficiency.

Based on this analysis, the true statements are:

  • There is no causation between the size of the vehicle and the fuel efficiency.
  • The correlation between the two quantities should be fairly strong to strong.