Question

4. Correlation basics 

Which of the following statements about correlation are true? Check all that apply 

• Correlation is a numerical value between 1.1 and 2. 

• The sign of the correlation indicates the strength or consistency of the linear relationship between two variables. 

• A negative correlation means that two variables tend to change in opposite directions 

• The correlation indicates the strength and the direction of the linear relationship between two variables 

• If the correlation between two variables is 0, there is no clear linear relationship between the two variables. 

• If the correlation between two variables is -1, it indicates a perfect negative linear relationship between the two variables. 

• The sign of the correlation indicates the direction of the relationship between two variables.

Answer 1