Correlation
The correlation coefficient between two variables X and Y is 0.85. What does this value indicate about the relationship between X and Y?
If the correlation coefficient between two variables A and B is -0.60, what kind of relationship do they have?
In a dataset with 15 data points, the correlation coefficient between variables P and Q is -0.72. What is the sum of the ranks of variable P in the dataset?
If the coefficient of determination (R-squared) is 0.64, what percentage of the variation in the dependent variable is explained by the independent variable?
If the p-value associated with a correlation coefficient is 0.02, is the correlation statistically significant at a 0.05 level of significance?