You are working as a manager at a big financial institution and it is your responsibility to get more people to use the credit cards and in doing so upgrade to a premium service that charges an annual fee. You conducted a test of your customer base and have a sample of 30 card holders data. Your goal is to see if consumers will upgrade. The three variables of interest are Upgrade (0=No, 1 = Yes); Purchase (prior year's credit card purchases in thousands of $) an Extra Card (if the consumer's ordered extra cards for their family 0 = No; 1 = Yes).

What are the predictor variables and response variables in the above problem?