1- For this discussion board, do all of the following: Define a negative correl

1- For this discussion board, do all of the following: Define a negative correlation, and provide a real-world example
Define a positive correlation, and provide a real-world example
Explain why two variables could be significally correlated with each other, but that we should not interpret that as a cause-and-effect relationship ( 300 words ) 2-Question:
A social psychologist conducted a study of the effectiveness of a local campaign to persuade people to recycle. The report of the study noted that “The overall R2 for predicting degree of recycling was .31, which was statistically significant—the betas were .03 for exposure to television advertisements, .02 for exposure to newspaper advertisements, .12 for having been contacted personally, and .28 for having a neighbor who recycles regularly.” Explain what these results mean.