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Which of the four fundamental features of object-oriented programming essentially means what an object does when there is a method call depends on the class of the object? (put NA if it applies to none of them)

Which of these might you want to add to the default statmodels regression model? Constant Multiple comparisons Scatterplot

Scatterplots are useful to visualize relationships you might investigate in linear regression True False

Based on the code above, which of the following is true? A Salesman is an Employee is a Person A Carsaslesman is a Salesman is an Employee is a Person A Person is an Employee is a Salesman An Employee is a Salesman is a Carsalesman

Multiple comparisons are a post-hoc test to indicate where a significant difference between groups might be found True False

Which ways do we frequently import statsmodels? import statsmodels.api as sm import statsmodels.formula.api as smf import statsmodels as st.mod import statsmodels as stat

We have a dataframe, df, and a variable, gender.  We have the following code. Which is true? ttest_ind() was not created properly; there will be an error This code is fine; it will run as expected ttest_ind was imported incorrectly; there will be an error the gender variable should have been df[‘gender’]; there will be an error

The default linear regression model will be equivalent if you run it in R and statsmodels True False

Packages outside of base Python never come with any Python installation. True False

Which of the following can you do with pip? install packages upgrade packages uninstall packages open packages