Python Institute PCAD-31-02

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

1. Which of the following statements best describes the structural relationship between Pandas Series and DataFrames?

A) A Series contains multiple DataFrames
B) A DataFrame is a two-dimensional container of Series objects
C) A DataFrame is a one-dimensional array of Series
D) A Series can only be created from a DataFrame

2. When analyzing a dataset, which of the following functions would best help detect skewness or asymmetry in the data distribution?

A) skew()
B) sum()
C) mean()
D) std()

3. What is the primary advantage of using web scraping as a data collection method in business analytics?

A) It guarantees real-time data accuracy
B) It ensures compliance with privacy laws
C) It allows automation of data collection from public sources
D) It eliminates the need for data cleaning

4. What is the purpose of using the groupby() function in a Pandas DataFrame when analyzing a dataset with multiple categories and numerical values?

A) To split the data into subgroups for aggregation
B) To sort the DataFrame by a specific column
C) To filter rows based on index values
D) To append new rows to the DataFrame

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

Solutions: