Income and Education
A professor of economics wants to study the relationship between income (y in $1000s)and education (x in years).A random sample eight individuals is taken and the results are shown below. 
-{Income and Education Narrative} Determine the least squares regression line.
Definitions:
AGI Deduction
Adjustments made to gross income to calculate the adjusted gross income (AGI), which can include contributions to retirement accounts, student loan interest, and other eligible deductions.
FICA Taxes
FICA taxes are federal payroll taxes collected to fund Social Security and Medicare, divided into equal parts paid by employers and employees.
Student Loan Interest
The cost incurred from borrowing funds for education, which can often be deducted from taxable income under certain conditions in many tax jurisdictions.
Deduction Limit
The maximum amount that can be subtracted from taxable income for certain expenses, beyond which deductions are no longer permitted or are reduced.
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