Discuss what is meant by the phrase, "Correlation does not imply causality." Compare correlation and regression to other types of "causal" statistical techniques. Provide real-world examples where a correlation would be useful and where a correlation would be inadequate and inappropriate. Look up a research article from a reputable conference proceeding that uses correlation in its research. Summarize that article, its methodology, and the results, and state whether you think using correlation as a statistical technique was useful and meaningful in that research.