This graph is the residual plot associated with a scatterplot of concentration against distance from a roadway (in km) for the change in the level of a pollutant from car exhausts as you go away from the road.
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Which of the following statements is consistent with this evidence?

Question

This graph is the residual plot associated with a scatterplot of concentration against distance from a roadway (in km) for the change in the level of a pollutant from car exhausts as you go away from the road.

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Which of the following statements is consistent with this evidence?

Answer

An exponential model is clearly indicated with a negative association.

Answer

A power law model is indicated with a negative association.

Answer

A linear plot is indicated so the relationship between pollutant concentration and distance is linear.

Answer

There is insufficient evidence to decide on any specific type of relationship between the variables, except that the linear relationship is NOT appropriate.

Answer

An exponential relationship, either positive or negative, is indicated between the pollutant concentration and the distance.

Crowdly

This graph is the residual plot associated with a scatterplot of concentration ...

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