The following information regarding a dependent variable y and an independent variable x is provided: 
The mean square error (MSE) is
Definitions:
Contract
A binding legal contract between two or more entities that establishes enforceable duties under the law.
Infant
A legal term referring to a person who is not yet of the legal age of majority, often considered under 18 years old.
Agent
An individual or entity authorized to act on behalf of another (the principal) in legal or business matters.
Law of Incapacity
Legal principles that determine when an individual lacks the legal ability to perform certain actions, such as entering into a contract, due to reasons like age or mental health.
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