Which value of the correlation coefficient indicates a perfect positive relationship?

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Multiple Choice

Which value of the correlation coefficient indicates a perfect positive relationship?

Explanation:
The correlation coefficient measures the direction and strength of a linear relationship between two variables, with values ranging from -1 to +1. A value of +1 signifies a perfect positive relationship, meaning as one variable increases, the other increases in exact proportionality and all data points fall on a straight line with a positive slope. That’s why this option is the correct one. Zero means no linear relation, -1 means a perfect negative relationship, and 1/2 indicates only a moderate positive relationship, not a perfect one.

The correlation coefficient measures the direction and strength of a linear relationship between two variables, with values ranging from -1 to +1. A value of +1 signifies a perfect positive relationship, meaning as one variable increases, the other increases in exact proportionality and all data points fall on a straight line with a positive slope. That’s why this option is the correct one. Zero means no linear relation, -1 means a perfect negative relationship, and 1/2 indicates only a moderate positive relationship, not a perfect one.

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