Exercise

Predicting a binary variable

Let's use logistic regression to predict a binary variable. Specifically, we'll use age, sex, and education level to predict support for legalizing cannabis (marijuana) in the U.S.

In the GSS dataset, the variable grass records the answer to the question "Do you think the use of marijuana should be made legal or not?"

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Fill in the parameters of smf.logit() to predict grass using the variables age, age2, educ, and educ2, along with sex as a categorical variable.