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:
Consistent Cheerfulness
The tendency to exhibit a positive, optimistic demeanor and mood across various situations and over time.
External Locus of Control
The belief that external forces beyond one's personal control determine life's events, leading to a perception of having little influence over one's fate.
Luck
The experience of notably positive, negative, or improbable events.
Exertion of Energy
The physical or mental effort applied to do something or achieve a particular result.
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