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Lesson 15-2 correlation coefficient is a measure of degree between two (or) more variables. It also known as cross-correlation coefficient. It may differ from -1 to +1. -1 indicates perfect negative correlation (if one variable increases, the another one decreases) and +1 indicates perfect positive correlation (if one variable increases, the another one increases). In this statistics calculator, calculate the correlation coefficient between the known variable values of X and Y. ................
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