Which of the following statements about correlation and causality are true? Select all that apply. Correlation means that one change necessarily caused another change. Spurious correlation exists when there is a humorous causal relationship observed between two unrelated variables. Spurious correlation exists when causality is not the driver of a correlation that is observed between two variables. Correlation does not imply causation.
a. Correlation means that one change necessarily caused another change.
b. Spurious correlation exists when there is a humorous causal relationship observed between two unrelated variables.
c. Spurious correlation exists when causality is not the driver of a correlation that is observed between two variables.
d. Correlation does not imply causation.