A plot of the residuals versus the fitted values for record-breaking times of female
marathon runners for the years 1998 - 2003 is: 
Based on this residuals plot, does it seem reasonable to use linear regression for this
model? Explain.
Definitions:
Social Class
A division of a society based on social and economic status, where individuals are grouped by criteria such as occupation, income, wealth, education, and social network.
Occupation
Occupation refers to a person's regular, long-term employment or role in society, which often defines a part of their identity and social status.
Age
The length of time that a person or entity has existed.
Bar Mitzvah
A Jewish coming of age ritual for boys reaching the age of 13, symbolizing their obligation to observe the commandments.
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