The following residual plot is obtained after a regression equation is determined for a set of data. Does the residual plot suggest that the regression equation is a bad model? Why or why not? 
Definitions:
Target Response
Target response refers to a specific behavior or reaction that is sought or aimed for in a particular context, such as in learning or experimental conditions.
Negative Reinforcement
A process in behavioral psychology where the removal of an undesirable stimulus strengthens a behavior.
Positive Reinforcement
A method in behavioral psychology of increasing the likelihood of a specific response by following it with a pleasurable or rewarding stimulus.
Target Response
In behaviorism, it refers to a desired behavior or outcome that is sought in a conditioning process.
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