Consider the regression model 
= 20 + 8x1 + 5x2 + 3x1x2.Which combination of x1 and x2,respectively,results in the largest average value of y?
Definitions:
Unconditioned Stimulus
A stimulus that instinctively and automatically provokes a reaction without needing any beforehand learning.
Insight Learning
A form of problem solving that occurs when a solution to a problem suddenly becomes apparent, often without trial-and-error behavior.
Law of Effect
A principle of learning that states behaviors followed by positive outcomes will be repeated, while those followed by negative outcomes will not.
Negative Reinforcement
A process in behavioral psychology where the removal of an unpleasant stimulus strengthens or increases the likelihood of a response.
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