Use decision trees to prepare a model on fraud data treating those who have taxable_income <= 30000 as "Risky" and others as "Good".

Data Description :

Undergrad : person is under graduated or not
Marital.Status : marital status of a person
Taxable.Income : Taxable income is the amount of how much tax an individual owes to the government
Work Experience : Work experience of an individual person
Urban : Whether that person belongs to urban area or not