PCAD-31-02 Valid Examcollection - Actual PCAD-31-02 Tests

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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Data Acquisition and Pre-Processing	29.2%
Topic 2: Statistical Methods and Modeling
Topic 3: Data Visualization and Communication
Topic 4: SQL and Data Management
Topic 5: Exploratory Data Analysis

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q61-Q66):

NEW QUESTION # 61
Which metric is most appropriate for evaluating the accuracy of a classification model?

A. R-squared
B. Mean squared error
C. Confusion matrix
D. Precision

Answer: D

NEW QUESTION # 62
Which of the following exceptions would most likely be raised if a string is directly converted to an integer in Python?

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

Answer: B

NEW QUESTION # 63
What is the primary difference between the == operator and the is operator in Python when used in a data pipeline?

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

Answer: D

NEW QUESTION # 64
What is the correct sequence to connect to a database and execute a query using the sqlite3 module in Python?

A. Execute → Connect → Commit → Close
B. Connect → Execute → Commit → Close
C. Connect → Commit → Execute → Close
D. Commit → Connect → Execute → Close

Answer: B

NEW QUESTION # 65
What is the outcome of the following code?
data = [5, 10, 15]
result = [x**2 for x in data if x > 5]
print(result)

A. [25, 100]
B. [25, 100, 225]
C. [100, 225]
D. [10, 15]

Answer: C

NEW QUESTION # 66
......

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