Which of the Following Statements About Scikit-Learn and the Machine-Learning

question 54

Multiple Choice

Which of the following statements about scikit-learn and the machine-learning models you'll build with it is false?

• A) It's difficult to know in advance which model(s) will perform best on your data, so you typically try many models and pick the one that performs best-scikit-learn makes this convenient for you.
• B) You'll rarely get to know the details of the complex mathematical algorithms in the scikit-learn estimators, but with experience, you'll be able to intuit the best model for each new dataset.
• C) It generally takes at most a few lines of code for you to create and use each scikit-learn model.
• D) The models report their performance so you can compare the results and pick the model(s) with the best performance.

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Definitions:

Prior Service Cost

The cost associated with retroactive benefits granted in a pension plan amendment, recognized over the service lives of affected employees.

Plan Assets

Assets that are specifically earmarked to pay pension benefits, typically held in a pension fund.

Pension Expense

An accounting charge representing the cost to a company of providing retirement benefits to employees during a particular time period.

Projected Benefit Obligation

An actuarial measure of the present value of pension benefits owed to employees, accounting for projected salary increases.