Question

The linear correlation coefficient is always between

Answer 1

Correlation coefficient formulas are used to find how strong a relationship is between data.

The formulas return a value between -1 and 1, where:

• 1 indicates a strong positive relationship. A correlation coefficient of 1 means that for every positive increase in one variable, there is a positive increase of a fixed proportion in the other.

• -1 indicates a strong negative relationship. A correlation coefficient of -1 means that for every positive increase in one variable, there is a negative decrease of a fixed proportion in the other.

• A result of zero indicates no relationship at all. Zero means that for every increase, there isn’t a positive or negative increase. The two just aren’t related.

Therefore, the correct answer is: The linear correlation coefficient is always between -1 and 1.

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