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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. Which operations are recommended when organizing messy tabular data in Pandas for further transformation and statistical modeling?
(choose two)

A) Converting the DataFrame to a Series
B) Resetting the index after filtering
C) Dropping column headers
D) Ensuring consistent data types

2. What is the primary difference between the == operator and the is operator in Python when used in a data pipeline?

A) is compares dictionary keys, while == compares keys and values
B) is checks value equality, while == checks for data type compatibility
C) == compares values for equality, while is checks for object identity
D) == checks identity, while is compares memory addresses

3. What does the standard deviation of a dataset represent in the context of statistical analysis?

A) The most frequently occurring value
B) The average squared distance from the mean
C) The sum of all values in the dataset
D) The number of outliers in the dataset

4. You have a list of product prices, and you need to remove duplicate values while maintaining the fastest performance. Which core data structure should you use?

A) set
B) list
C) tuple
D) dictionary

5. Which operations are valid when working with Pandas Series?
(Choose two)

A) Applying NumPy universal functions
B) Arithmetic vector operations
C) Using .columns to rename
D) Merging by index using merge()

Solutions: