Statistics: Correlation analysis • English Conversation Questions

What is correlation analysis, and why is it important?
How do you interpret a correlation coefficient?
What are the assumptions of correlation analysis?
What is the difference between positive and negative correlation?
Can correlation analysis be used to establish causality?
What are some common mistakes to avoid when conducting correlation analysis?
How can you determine whether a correlation coefficient is statistically significant?
What is the difference between Pearson correlation and Spearman correlation?
Can you give an example of when correlation analysis would be useful in real life?
What is the impact of outliers on correlation analysis?
How does sample size affect the validity of correlation analysis?