PCED-30-02 Valid Test Syllabus & PCED-30-02 Test Engine

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Python Institute PCED-30-02 Exam Syllabus Topics:

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

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q38-Q43):

                          NEW QUESTION # 38
                          A program uses slicing on a string "Python". The expression s[1:4] is evaluated. Which substring will be returned?

                          Answer: D

                          Explanation:
                          Slicing includes the start index but excludes the end index. Characters at indices 1, 2, and 3 are selected, producing the substring "yth".


                          NEW QUESTION # 39
                          A variable is assigned using chained assignment: a = b = c = 10. The developer then changes b =
                          5. What will be the value of a after this operation?

                          Answer: D

                          Explanation:
                          Integers are immutable in Python. Reassigning b to a new value does not affect a or c, which still reference the original integer value 10.


                          NEW QUESTION # 40
                          A health researcher uses wearable devices to record physical activity and sends a survey to randomly selected participants across age groups.
                          Why can this approach be effective? Select the best answer.

                          Answer: C

                          Explanation:
                          Combining automated wearable data with a randomly selected survey sample integrates objective measurements with representative participant input, which helps reduce bias and improves the reliability and generalizability of the findings.


                          NEW QUESTION # 41
                          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.

                          Answer: C

                          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 # 42
                          A student writes a program using input() to collect user data, then tries to add 5 to the input value without conversion. The program crashes. What is the most likely cause of this behavior?

                          Answer: A

                          Explanation:
                          The input() function always returns a string. Attempting to add an integer to a string causes a TypeError. The input must be explicitly converted using int() or float() before performing arithmetic operations.


                          NEW QUESTION # 43
                          ......

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