Question: a) You build a response model using both Stats Can taxfiler data and Stats Can Census data. You observe that all the strongest variables are

a) You build a response model using both Stats Can taxfiler data and Stats Can Census data. You observe that all the strongest variables are Stats Can Census variables. What would be one strong reason for this occurrence.

b) you have postal code as a variable in a dataset of 100000 customers. There are 20000 unique postal codes. Provide one reason why this variable might still be useful?

c) In a data audit exercise, you observe that there are Canadian postal codes containing outcomes that are completely numeric such as 90210. What would you do?

d) You have no individual customer data for Company XYZ but market research indicates that the the most satisfied respondents of Company XYZ are high income, high education and tend to be recently arrived immigrants. What would you do?

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