Final answer:
Variables such as income, needs, and cost are commonly used to determine suitability, while credit is not typically a factor.
Explanation:
Income, needs, and cost are all variables commonly used to determine suitability. However, credit is not typically a variable used in this context. For example, when assessing an individual's suitability for a loan, their income, needs, and the associated costs are considered, rather than their credit score.
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