Question

Which of the following could be the valid value(s) of the correlation coefficient between two variables?

(A) -1

(B) +1

(C) -2

(D) +2

Choose the correct answer from the options given below

A (A) only Correct Answer Incorrect Answer
B (A) and (B) both. Correct Answer Incorrect Answer
C (A), (B), (C) and (D) Correct Answer Incorrect Answer
D (B) only Correct Answer Incorrect Answer

Solution

The correlation coefficient, which measures the strength and direction of a linear relationship between two variables, ranges from -1 to +1. -1 indicates a perfect negative linear correlation, +1 indicates a perfect positive linear correlation, and 0 indicates no linear correlation. Values outside this range, such as -2 or +2, are not possible.

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