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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Data Analysis and Visualization- Data visualization
  • 1. Matplotlib basics
    • 2. Plot interpretation
      - Data cleaning and preprocessing
      • 1. Data transformation techniques
        • 2. Missing values handling
          Basic Statistics for Data Analysis- Descriptive statistics
          • 1. Mean, median, mode
            • 2. Variance and standard deviation
              Data Handling and Processing with Python- Working with data structures
              • 1. Iterating and transformations
                • 2. Lists, tuples, dictionaries
                  - Data manipulation libraries
                  • 1. NumPy basics
                    • 2. Pandas fundamentals
                      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 (Q21-Q26):

                          NEW QUESTION # 21
                          You are given a short Python script that uses both arithmetic and assignment operators. The variable x is initialized as 4, then updated using x *= 2 + 3. What will be printed when the final value of x is displayed?

                          Answer: D

                          Explanation:
                          Python evaluates the addition first because of operator precedence. The expression 2 + 3 equals
                          5, then x *= 5 multiplies the current value of x (4) by 5, resulting in a final value of 20.


                          NEW QUESTION # 22
                          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?

                          Answer: D

                          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 # 23
                          A program uses slicing on a string "Python". The expression s[1:4] is evaluated. Which substring will be returned?

                          Answer: C

                          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 # 24
                          A programmer writes a script to test operator precedence using the expression 3 + 4 * 2 ** 2. The goal is to evaluate the result correctly based on Python's operator hierarchy rules. What result should the script produce?

                          Answer: B

                          Explanation:
                          Exponentiation is evaluated first, so 2 ** 2 equals 4. Then multiplication 4 * 4 equals 16. Finally, addition is performed: 3 + 16 results in 19.


                          NEW QUESTION # 25
                          A teacher wants to compare the number of students in different school clubs:

                          Which type of chart would be most appropriate to show this comparison? Select the best answer.

                          Answer: C

                          Explanation:
                          A bar chart is best for comparing quantities across distinct categories, such as the number of students in each club, because it clearly shows differences in counts side by side.


                          NEW QUESTION # 26
                          ......

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