Assume the figure below represents the association between self-reported physical activity (Y) and some predictor (X) . Which of the following variables illustrates the amount of variance accounted for in this figure? Use the coefficient of determination to find the answer. 
Definitions:
Simulations
The act of imitating the operation of a real-world process or system over time for the purpose of training, analysis, or prediction.
Realistic Situations
Circumstances or scenarios that closely mimic real-life conditions, often used in simulations or training.
Measurement Format
The method or system used for quantifying or evaluating attributes, behaviors, or outcomes.
Time Sample Recording
A method of observational study where behavior is recorded at specific, regular intervals to capture variations over time.
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