21. A data professional is considering whether the data they are using to build a model is appropriate. Which PACE stage does this scenario describe?
- Analyze
- Execute
- Construct
- Plan
22. Which of the following statements accurately describe Python notebooks and scripts? Select all that apply.
- Python scripts are useful for pairing code with human-readable descriptions and outputs.
- Data professionals often alternate between Python notebooks and scripts.
- Python notebooks are executed by a computer without the need for human supervision.
- Data professionals can use both Python notebooks and scripts to execute code.
23. Fill in the blank: Matplotlib is a type of _____, which enables data professionals to create plots and graphs for data projects.
- machine learning package
- operational package
- data visualization package
- mathematical package
24. Fill in the blank: A data professional working on an email campaign may request assistance from the _____ department to understand the purpose of their data work and confirm they are working toward a clear target.
- information technology
- marketing
- finance
- business intelligence
25. Which of the following statements correctly describe supervised and unsupervised machine learning? Select all that apply.
- Supervised machine learning uses labeled datasets to train algorithms to classify or predict outcomes.
- Data professionals use supervised machine learning for prediction.
- In supervised machine learning, data professionals ask the model to give them information without telling the model what the answer should be.
- In unsupervised machine learning, data professionals ask the model to give them information without telling the model what the answer should be.
26. Fill in the blank: The terms machine learning and _____ both refer to training a computer to detect patterns in data without being explicitly programmed to do so.
- coding
- reinforcement learning
- quality assurance
- artificial intelligence
27. Which of the following items are discrete variables? Select all that apply.
- Type of fast food restaurant
- Total cars in a parking lot
- Number of days in March
- Amount of people in a household
28. A data professional is considering whether the data they are using to build a model is representative of the population. Which PACE stage does this scenario describe?
- Analyze
- Construct
- Execute
- Plan
Shuffle Q/A 3
29. Which of the following applications would be well-suited to the use of Python scripts? Select all that apply.
- A task that requires a human-readable output
- A program that incorporates several files
- A program that contains errors in need of debugging
- A task pairs code with human-readable descriptions.
30. Which of the following statements accurately describe content-based filtering? Select all that apply.
- Content-based filtering does not require information from other users to work properly.
- Content-based filtering can go beyond comparing items to recommending other things that match a user’s preferences.
- Content-based filtering properties never have to be selected and mapped manually.
- Content-based filtering is ineffective at making recommendations across content types.