Python Institute PCAD-31-02 Actual Free Exam Questions & Community Discussion
Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)
(Choose two)
Correct Answer: C,D
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When analyzing a dataset, which of the following functions would best help detect skewness or asymmetry in the data distribution?
Correct Answer: D
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What does a Pearson correlation coefficient value of -0.9 imply about the relationship between two numerical variables?
Correct Answer: D
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Why is it important to manage object identity correctly in complex data analysis pipelines?
Correct Answer: A
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Which of the following practices contributes most to making Python scripts modular and maintainable?
Correct Answer: A
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Which approaches help tailor data visualizations for non-technical stakeholders?
(Choose two)
(Choose two)
Correct Answer: B,D
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Which file formats are commonly used for hierarchical or nested data structures in data acquisition?
(Choose two)
(Choose two)
Correct Answer: A,B
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Which techniques are commonly used to manage type conversion between SQL and Python when importing database values?
(Choose two)
(Choose two)
Correct Answer: C,D
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What is the primary reason for using parameterized queries instead of directly formatting SQL strings in Python?
Correct Answer: D
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