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Python Institute PCED-30-02 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Analysis and Visualization	- Data visualization 1. Plot interpretation 2. Matplotlib basics - Data cleaning and preprocessing 1. Missing values handling 2. Data transformation techniques
Topic 2: Python Programming Fundamentals	- Basic syntax and data types 1. Control flow basics 2. Variables and operators
Topic 3: Basic Statistics for Data Analysis	- Descriptive statistics 1. Mean, median, mode 2. Variance and standard deviation
Topic 4: Data Handling and Processing with Python	- Working with data structures 1. Lists, tuples, dictionaries 2. Iterating and transformations - Data manipulation libraries 1. NumPy basics 2. Pandas fundamentals

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Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q30-Q35):

NEW QUESTION # 30
You are given two lists representing daily page views and sign-ups on a website:
views = [120, 130, 128, 700, 115, 123, 119, 680, 122]
signups = [12, 15, 13, 50, 11, 14, 10, 55, 13]
You want to:
- remove outliers (views > 600), and
- calculate correlation between the cleaned lists.
Which code accomplishes this correctly? Select the best answer.

Answer: A

Explanation:
It converts the lists to NumPy arrays, builds a boolean mask based on the views threshold to remove outliers, applies the same mask to both arrays so they stay aligned, and then computes the correlation on the cleaned pairs using np.corrcoef.

NEW QUESTION # 31
A loop includes a break statement when a condition is met. The programmer wants to understand how break affects loop execution. What happens when break is executed inside the loop?

A. Loop restarts
B. Skips one iteration
C. Loop ends immediately
D. Error

Answer: C

Explanation:
The break statement immediately terminates the loop, regardless of remaining iterations. Control is transferred to the first statement following the loop block.

NEW QUESTION # 32
The following chart shows how a student spends 24 hours in a day:

Which statements are most accurate? (Choose two.)

A. Sleep and school take up the majority of time in a day.
B. Commuting is the second most time-consuming activity.
C. Leisure and meals combined equal the time spent at school.
D. Leisure accounts for a moderate portion of the student's daily schedule, larger than commuting but smaller than the time spent at school.
E. School and homework together take up half of the day's time.
F. More time is spent commuting than on leisure.

Answer: A,D

NEW QUESTION # 33
A government agency collects citizen data for various public services.
What is the primary reason for emphasizing careful data management throughout the entire data lifecycle in this context? Select the best answer.

A. To enable seamless sharing of anonymized citizen information with other governmental bodies for collaborative initiatives.
B. To uphold data quality for effective service delivery, safeguard citizen privacy and prevent misuse, and comply with data protection laws.
C. To streamline the initial capture of citizen details and minimize the administrative burden on both staff and the public.
D. To guarantee the long-term availability and integrity of crucial citizen datasets for future policy formulation and evaluation.

Answer: B

Explanation:
Careful data management across the entire lifecycle ensures high data quality for reliable public services, protects sensitive citizen information from misuse, and maintains compliance with legal and regulatory data protection requirements.

NEW QUESTION # 34
A Python loop uses range(5, 0, -2) to iterate backward. The programmer expects a decreasing sequence. Which values will actually be generated when this loop runs?

A. 5, 3
B. 5, 4, 3, 2, 1
C. 5, 3, 1
D. 4, 2, 0

Answer: C

Explanation:
The range starts at 5 and decreases by 2 each step until it reaches a value greater than 0. The generated sequence is 5, 3, and 1.

NEW QUESTION # 35
......

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