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IBM Watson Data Scientist v1 Sample Questions:

1. In defining a business problem, what is essential to align with the stakeholders?

A) Technical requirements
B) Data sources
C) Project milestones
D) Business objectives

2. Which Python library is commonly used for data manipulation and analysis, and is available in Cloud Pak for Data?

A) Pandas
B) PyTorch
C) TensorFlow
D) Keras

3. Which of the following is true about the AUC measure in the context of classification models?

A) It is less useful when the classes are highly imbalanced.
B) It indicates the number of false positives.
C) It represents the degree of separability between classes.
D) It measures the model's accuracy using a single threshold.

4. Which statement best differentiates machine learning from deep learning?

A) Deep learning algorithms require less data to learn.
B) Machine learning algorithms perform better on structured data, while deep learning excels with unstructured data like images and text.
C) Machine learning models are always transparent, whereas deep learning models cannot be interpreted.
D) Deep learning algorithms are a subset of machine learning algorithms that do not require feature engineering.

5. Which metric would be most appropriate for evaluating a model in a highly imbalanced classification problem?

A) F1-score
B) Precision
C) Recall
D) Accuracy

Solutions: