Question

question 2 of 10
correlation is:

a. a study in which researchers change one factor.

b. a relationship between two or more variables.

c. any scientifically proven relationship.

d. proof of causation.

Explanation:

• Option A describes an experiment (where a factor is manipulated), not correlation.
• Option B matches the definition of correlation, which examines how two or more variables relate to each other (e.g., positive, negative, or no relationship).
• Option C is incorrect as correlation does not require "scientific proof" in this context and focuses on the relationship, not its validity.
• Option D is wrong because correlation does not prove causation (a common statistical principle: correlation ≠ causation).

Answer:

B. a relationship between two or more variables.