Correlation and effect
Which is the strongest correlation
1r=-.77 or r=.02
2 r=.37 or r=.12
3 r=.19 or r=.03
4= r=.80 or r=-.41
The strongest correlation is r = -0.77.
Correlation measures the strength and direction of the relationship between two variables. The absolute value of the correlation coefficient indicates the strength of the correlation, while the sign indicates the direction. In this case, the correlation coefficient -0.77 has a higher absolute value than 0.02, indicating a stronger correlation.
A correlation coefficient of -0.77 suggests a strong negative relationship between the variables. This means that as one variable increases, the other variable tends to decrease. On the other hand, a correlation coefficient of 0.02 indicates a very weak positive relationship or almost no relationship at all.
Comparing the other pairs, a correlation coefficient of 0.37 is stronger than 0.12. Although both coefficients are positive, 0.37 indicates a moderate positive relationship, while 0.12 suggests a weak positive relationship. Similarly, a correlation coefficient of 0.19 is stronger than 0.03. Again, both coefficients are positive, but 0.19 represents a moderate positive relationship compared to the weak positive relationship indicated by 0.03.
Lastly, a correlation coefficient of 0.80 is stronger than -0.41. Both coefficients are relatively high in absolute value, suggesting a strong relationship. However, 0.80 indicates a strong positive relationship, while -0.41 indicates a strong negative relationship.
In summary, among the given pairs, the strongest correlation is observed when r = -0.77, indicating a strong negative relationship between the variables.
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