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

1. Which of the following exceptions would most likely be raised if a string is directly converted to an integer in Python?

A) ValueError
B) IOError
C) TypeError
D) RuntimeError

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

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

3. Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

A) Polynomial regression
B) Decision tree regression
C) Logistic regression
D) Linear regression

4. When merging two Pandas DataFrames using a common key, which parameters are essential to ensure accurate and conflict-free results?
(Choose two)

A) on
B) suffixes
C) ignore_index
D) dropna

5. Which Python library is most commonly used to establish a connection to a SQLite database and perform SQL operations?

A) psycopg2
B) sqlalchemy
C) pymysql
D) sqlite3

Solutions: