Question 19
The linear correlation coefficient (r) is a value that is used to summarize the direction and magnitude of the relationship between two variables. It has a range of 1 to -1 with 1 indicating that there is a very strong positive linear correlation between the variables while -1 shows a very strong negative linear relationship between the 2 variables. Therefore, if r is close to +1, then this means that the variables have a strong and linear relationship between each other.
References
Taylor, R. (1990). Interpretation of the correlation coefficient: a basic review. Journal of diagnostic medical sonography , 6 (1), 35-39.
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