A correlation coefficient is a numerical index that reflects the relationship between ______ . a. three variables b. one variable c. one variable and two variables d. two variables

Respuesta :

A correlation coefficient is a numerical index that reflects the relationship between two variables.

What is the correlation coefficient?

The correlation coefficient helps us to know how strong is the relation between two variables. Its value is always between +1 to -1, where, the numerical value shows how strong is the relation between them and, the '+' or '-' sign shows whether the relationship is positive or negative.

  • 1 indicates a strong positive relationship.
  • -1 indicates a strong negative relationship.
  • A result of zero indicates no relationship at all, therefore, an independent variable.

The given blank in the sentence can be filled with two variables.

Hence, A correlation coefficient is a numerical index that reflects the relationship between two variables.

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