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Python Institute PCAD-31-02 Exam Syllabus Topics:

Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:

1. When analyzing a dataset of customer ages, you calculate the mean, median, and mode. What does it indicate if all three values are approximately equal?

A) The dataset has a normal distribution
B) The dataset is positively skewed
C) The dataset contains outliers
D) The dataset is uniformly distributed

2. Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)

A) It requires a large population sample
B) It assumes a normal distribution
C) It enables confidence interval estimation
D) It uses random sampling with replacement

3. Which best practices help enhance database security when building Python data analysis pipelines?
(Choose two)

A) Limit database user permissions to only necessary operations
B) Store credentials securely using environment variables
C) Sanitize input by replacing dangerous characters with asterisks
D) Construct queries using f-strings for readability

4. Which type of chart is most appropriate when comparing the distribution of a numerical variable across multiple categories?

A) Pie chart
B) Scatter plot
C) Box plot
D) Line chart

5. When creating a line chart with Matplotlib, which function is most appropriate to add a text label at a specific data point?

A) plt.xlabel()
B) plt.legend()
C) plt.title()
D) plt.annotate()

Solutions: