The scatterplot shows the densities of 7 planetoids, in grams per cubic centimeter, with respect to their average distances from the Sun in astronomical units (AU). The line of best fit is also shown.According to the scatterplot, which of the following statements is true about the relationship between a planetoid's average distance from the Sun and its density?
Correct answer: A. Planetoids that are more distant from the Sun tend to have lesser densities.
- A. Planetoids that are more distant from the Sun tend to have lesser densities.
- B. Planetoids that are more distant from the Sun tend to have greater densities.
- C. The density of a planetoid that is twice as far from the Sun as another planetoid is half the density of that other planetoid.
- D. The distance from a planetoid to the Sun is unrelated to its density.
Explanation
Choice A is correct. The slope of the line of best fit is negative, meaning as the distance of planetoids from the Sun increases, the density of the planetoids decreases. Therefore, planetoids that are more distant from the Sun tend to have lesser densities.
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