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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Python Programming Fundamentals- Basic syntax and data types
  • 1. Variables and operators
    • 2. Control flow basics
      Basic Statistics for Data Analysis- Descriptive statistics
      • 1. Variance and standard deviation
        • 2. Mean, median, mode
          Data Analysis and Visualization- Data cleaning and preprocessing
          • 1. Data transformation techniques
            • 2. Missing values handling
              - Data visualization
              • 1. Plot interpretation
                • 2. Matplotlib basics
                  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

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q10-Q15):

                          NEW QUESTION # 10
                          A program uses slicing on a string "Python". The expression s[1:4] is evaluated. Which substring will be returned?

                          Answer: B

                          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 # 11
                          A list is reversed using slicing: lst[::-1]. The programmer wants to confirm whether this modifies the original list or creates a new one. What is the correct behavior?

                          Answer: A

                          Explanation:
                          Slicing creates a new list object rather than modifying the original. The expression lst[::-1] returns a reversed copy, leaving the original list unchanged.


                          NEW QUESTION # 12
                          A Python developer is testing truth values of different data types using the bool() function. The expression bool([0]) is evaluated in the script. What result should be expected when this expression is printed?

                          Answer: C

                          Explanation:
                          In Python, any non-empty list evaluates to True in a Boolean context. Even though the element inside the list is zero, the list itself is not empty, so the result is True.


                          NEW QUESTION # 13
                          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: B

                          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 # 14
                          A Python script includes the expression not False and True. The developer is unsure how logical operators are evaluated in terms of precedence. What will be the final Boolean result of this expression?

                          Answer: C

                          Explanation:
                          The not operator has higher precedence than and, so not False becomes True first. Then True and True is evaluated, resulting in True as the final Boolean value.


                          NEW QUESTION # 15
                          ......

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