Question

Which of the following statements about correlation are true? Check all that apply. The correlation is scaleless; that is, it doesn't change when the measurement units are changed for either or both of the variables. The correlation indicates the strength and the direction of the linear relationship between two variables. Correlation measures and describes the behavior of a single variable. If the correlation between two variables is 0, there is no clear linear relationship between the two variables. The sign of the correlation indicates the strength or consistency of the linear relationship between two variables. The sign of the correlation indicates the direction of the relationship between two variables. A correlation of 1 indicates that there is little or no linear relationship between the two variables.