A researcher is interested in studying the relationship between income and happiness. She collects data on a sample of 100 people, and finds that the average income is $50,000 and the average happiness score is 7.5. She also finds that the correlation coefficient between income and happiness is 0.5. What can the researcher conclude from this data?
A researcher is interested in studying the relationship between income and happiness. She collects..
A researcher is interested in studying the relationship between income and happiness. She collects data on a sample of 100 people, and finds that the average income is $50,000 and...