Given the following information, what is the coefficient of determination? 
SSE = 420.4, SST = 1028.8
Definitions:
Defense Mechanism
Psychological strategies employed unconsciously to protect oneself from anxiety arising from unacceptable thoughts or feelings.
Denial
A defense mechanism where a person refuses to accept reality or facts, often to avoid discomfort or anxiety.
Moderate Anxiety
A level of anxiety that is more intense than mild anxiety but not as severe as extreme anxiety, potentially affecting daily functioning but manageable.
Preoperative Information
Information provided to patients about procedures and care before undergoing surgery.
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