In fitting a model to classify prospects as purchasers or non-purchasers, a certain company drew the training data from internal data that include demographic and purchase information. future data to be classified will be lists purchased from other sources, with demographic (but not purchase) data included. it was found that "refund issued" was a useful predictor in the training data. is this an appropriate variable to include in the model?

a. yes

b. no

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After much consideration, you have chosen cancun over ft. lauderdale as your spring break destination this year. however, spring break is still months away, and you may reverse this decision. which of the following events would prompt you to reverse this decision? a. the marginal cost of going to cancun decreases.b. the marginal cost of going to ft. lauderdale decreases.c. the marginal benefit of going to cancun increases.d. the marginal benefit of going to ft. lauderdale decreases.

Evaluate a real situation between two economic actors; it could be any scenario: two competing businesses, two countries in negotiations, two kids trading baseball cards, you and another person involved in an exchange or anything else. use game theory to analyze the situation and the outcome (or potential outcome). be sure to explain the incentives, benefits and risks each face.