Python Institute PCAD-31-02 : Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)
- Exam Code: PCAD-31-02
- Exam Name: Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)
- Updated: Sep 21, 2026
- Q & A: 146 Questions and Answers
About Python Institute PCAD-31-02 Exam
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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exploratory Data Analysis | ||
| Topic 2: Data Visualization and Communication | ||
| Topic 3: Statistical Methods and Modeling | ||
| Topic 4: Data Acquisition and Pre-Processing | 29.2% | |
| Topic 5: SQL and Data Management |
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)
- A. It uses random sampling with replacement
- B. It requires a large population sample
- C. It assumes a normal distribution
- D. It enables confidence interval estimation
Correct Answer: A,D 🗳️
Which SQL command should a data analyst use to modify existing records in a database table based on specific conditions?
- A. UPDATE
- B. SELECT
- C. CREATE
- D. INSERT
Correct Answer: A 🗳️
When performing bootstrapping on a dataset with 500 observations, what is a typical procedure?
- A. Generating multiple datasets of the same size by randomly sampling with replacement
- B. Drawing one sample and calculating the mean only once
- C. Creating samples by removing all duplicates
- D. Scaling all values between 0 and 1 before resampling
Correct Answer: A 🗳️
Which practices are essential to ensure a fair evaluation of a machine learning model's performance?
(Choose two)
- A. Randomizing the test dataset labels
- B. Using cross-validation to assess generalizability
- C. Splitting data into training and test sets
- D. Training on the entire dataset including test records
Correct Answer: B,C 🗳️
Which methods can be used to validate data types and structure in a Pandas DataFrame?
(Choose two)
- A. df.info()
- B. df.to_csv()
- C. df.memory_usage()
- D. df.dtypes
Correct Answer: A,D 🗳️
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