Question

A value of -1 for the coefficient of correlation between two variables means that the two variables are ________________.

A) not related at all
B) somewhat strongly related
C) perfectly related
D) weakly related
E) very weakly related

Answer 1

The answer is C. perfectly related.

Explanation:

A value of exactly 1 means there is a perfect positive relationship between the two variables. For a positive increase in one variable, there is also a positive increase in the second variable. A value of -1.0 means there is a perfect negative relationship between the two variables.

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