PCED-30-02 Reliable Exam Papers, PCED-30-02 Lab Questions

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Python Institute PCED-30-02 Exam Syllabus Topics:

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

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Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q36-Q41):

NEW QUESTION # 36
You have a list of test scores, where each entry includes a student name and a score. Some students appear more than once. You want to compute the average score for each student and store the results in a dictionary. Here's the partial code block:

Which code correctly replaces the # MISSING CODE comment to calculate the average score for each student? Select the best answer.

Answer: B

Explanation:
It iterates through each record, extracts the name and score, and uses dictionary .get() to accumulate total scores and counts per student safely, initializing missing keys to zero. This correctly enables calculation of each student's average afterward.

NEW QUESTION # 37
A program uses while False: followed by print statements inside the loop. The developer expects output. What will actually happen during execution?

A. No execution
B. Error
C. Prints once
D. Infinite loop

Answer: A

Explanation:
The condition False is evaluated before entering the loop. Since it is always false, the loop body is never executed, and no output is produced.

NEW QUESTION # 38
A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

A. SQL, because it directly converts tabular data into database tables that Excel can open.
B. CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.
C. JSON, because it stores hierarchical data and is designed for visual presentation in Excel.
D. XML, because it automatically preserves spreadsheet formatting and charts.

Answer: B

Explanation:
CSV stores tabular data in a simple plain-text, comma-separated format that is widely supported by spreadsheet applications like Excel, making it ideal for sharing datasets for easy import and analysis.

NEW QUESTION # 39
Given the following string:
text = "Report2024Final"
Which of the following statements are entirely correct? (Choose two.)

A. text.capitalize()changes Report2024Finalto REPORT2024FINAL, and text.find("2024")returns 6
B. text[-6].isdigit() returns True, text.startswith("r") returns True
C. text.capitalize()changes Finalto lowercase, and text.find ("L")returns True
D. text.isalpha()returns True, and text.find ("2024")returns True
E. text[6:8].isdigit()returns True, and text.endswith("Final")returns True
F. text[0:6].isalpha() returns True, and text.find("2024") returns 6

Answer: C,E,F

Explanation:
The slice text[6:8] is "20", which contains only digits, and the string ends with "Final". The first six characters are "Report", which are all alphabetic, and "2024" begins at index 6.

NEW QUESTION # 40
Which of the following statements about Python functions are correct? (Choose two.)

A. If a function does not contain a returnstatement, it returns Noneby default.
B. Positional arguments must be passed in the order defined, while keyword arguments can be passed in any order using their parameter names.
C. Default parameters must always come before required ones in the parameter list.
D. passexecutes the function body and returns its result.
E. Functions can only return numeric values or strings.
F. A function cannot call itself or be passed as an argument to itself.

Answer: A,B

Explanation:
Positional arguments are matched to parameters by their position, so they must follow the defined order, while keyword arguments are matched by name and can be provided in any order. If a function completes without an explicit return statement, Python returns None automatically.

NEW QUESTION # 41
......

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