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IBM Watson Data Scientist v1 Sample Questions:

1. When helping businesses articulate and define problems, what is an essential first step?

A) Selecting the analytical techniques
B) Establishing a clear problem statement
C) Identifying potential data sources
D) Defining key performance indicators (KPIs)

2. F1-score is particularly useful when:

A) The data is completely balanced.
B) Only the model's accuracy matters.
C) You need a balance between precision and recall.
D) The dataset size is extremely large.

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

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

4. Given the Confusion matrix below, which is the formula for specificity?

A) TN/(TN + FP)
B) TP/(FP + TP)
C) TP/(FN + TP)
D) (TP + TN)/(FN + FP + TN + TP)

5. Which feature is NOT available when managing models with Watson Machine Learning?

A) Automatic conversion of all models to deep learning models
B) Version control of deployed models
C) Real-time performance monitoring
D) Rollback capabilities for model versions

Solutions: