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.
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The correlation coefficient measures the strength and direction of a linear relationship.between two variables, with -1 and +1 representing perfect negative and positive corre- lations, respectively.
The correlation coefficient is valid only for values ranging from -1 to +1. Values outside this range are invalid, confirming that -1 and +1 are valid.