Answer:
The statements which are true are--
- The correlation coefficient is a unit less number and always lie between -1 and +1 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 is the relationship between the two variables.
Explanation:
We know that a correlation coefficient is a measure which is used to determine the relationship between the two-variables i.e. it is used to find the strength between the two-variables.
The numerical value of correlation coefficient always lie between -1 and 1.
Also, if the correlation coefficient is close to 1 or -1 then the relationship between the variables is strong.
and if it is close to 0- then there is no correlation.
Also, r-value is positive means that there is a positive relationship between the variables and it is negative means that there is a negative relationship between the variables.
Also larger is the absolute value stronger is the relationship.