Current location - Training Enrollment Network - Mathematics courses - Excuse me, when the correlation coefficient of linear correlation in high school mathematics meets what range, is it one strong, two strong and three weak?
Excuse me, when the correlation coefficient of linear correlation in high school mathematics meets what range, is it one strong, two strong and three weak?
In statistics, correlation coefficient R is used to measure the strength of linear relationship between two variables.

If r∈[0.75, 1], then the positive correlation is very strong; If r∈[- 1, -0.75], then the negative correlation is very strong;

If r∈(-0.75, -0.30) or r∈[0.30, 0.75], the correlation is average;

If r∈[-0.25, 0.25], the correlation is weak.

R has a formula to calculate, and you can look it up if necessary.