Question

Which of the following statements are true? Select all that apply.

Answer 1

The correlation coefficient is a value that signifies correlation and dependence between two or more values. The following statements are true:
- The correlation coefficient is a unitless number and must always lie between –1.0 and +1.0, inclusive.
- The correlation coefficient, r, gives us information about the strength and direction of a linear relationship between any two variables.
- The larger r is in absolute value, the stronger the relationship is between the two variables.

Answer 2

Answer:

The correct statements are as follows:

Correlation coefficients are used to measure the strength, like weaker or stronger relationship between two variables.

The correlation coefficient is a unit less number and must always lie between –1.0 and +1.0, inclusive.

The correlation coefficient, r , gives us information about the strength and direction of a linear relationship between any two variables. We can say that r > 0 is a positive correlation and r < 0 is negative. |r| closer to 1 is a stronger correlation.

The larger r is in absolute value, the stronger the relationship is between the two variables.