There is a strong positive correlation between the number of firefighters at a fire and the amount of damage the fire does. Does sending more firefighters cause greater damage?
A. |
B. |
True or false: If r is close to +1.0, then changes in the X variable cause changes in the Y variable.
A. |
B. |
True or false: If an experiment is not possible, causation can still be established by meeting several criteria using the results of many studies.
A. |
B. |