what is correlation

Question

what is correlation

Accepted Answer

Correlation is a statistical measure that describes the relationship between two variables.

Correlation can range from -1 to 1, with 1 indicating a perfect positive correlation, -1 indicating a perfect negative correlation, and 0 indicating no correlation.
Correlation does not imply causation, meaning just because two variables are correlated does not mean that one causes the other.
For example, if there is a positive correlation between studying hours and exam scores, it means that as studying hours increase, exam scores also tend to increase.
On the other hand, if there is a negative correlation between exercise and weight gain, it means that as exercise increases, weight gain tends to decrease.