Discussion
Which of the following correlation co-efficients represents the weakest relationship between two variables ?
Answer: B
The correlation coefficient +0.10 shows the weakest relationship. The strength of a relationship depends on the size of the coefficient and not on its sign, and the closer the value is to zero the weaker the relationship. Among -0.59, +0.10, -1.0 and +0.76, the value +0.10 is nearest to zero. A coefficient of -1.0 is a perfect negative relationship, the strongest possible, and -0.59 and +0.76 are moderate and fairly strong.
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