ObjectiveMcq
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Correlation analysis indicates:
Correct Answer: B — The degree and direction of the relationship
The correct answer is B: The degree and direction of the relationship.
Key Points:
Correlation analysis is a statistical technique used to determine the degree and direction of a relationship between two variables.
The correlation coefficient ranges between -1 and +1:
Close to +1: strong positive relationship.
Close to -1: strong negative relationship.
Close to 0: no relationship.
Correlation does not imply causation; it merely indicates that two variables are associated.
Additional Information:
Cause-and-effect relationship: Incorrect — correlation does not establish causation. Causation requires further analysis such as experiments or regression analysis.
Functional relationship: Incorrect — a functional relationship is a precise mathematical expression (e.g., y = f(x)); correlation only measures association.
Trend over time: Incorrect — trends over time are analyzed using time series or trend analysis, not correlation.