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Python Institute PCED-30-02 Exam Syllabus Topics:

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

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                          PCED-30-02 Exam Certification & PCED-30-02 Exam Tutorials

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q43-Q48):

                          NEW QUESTION # 43
                          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?

                          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 # 44
                          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: D

                          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 # 45
                          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: C

                          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 # 46
                          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 # 47
                          You are writing a function to validate battery voltage readings. The rules are:
                          - If the reading is "MISSING"or None, return "Missing".
                          - If the value is below 2.5or above 4.2, return "Outlier".
                          Otherwise, return "Normal".
                          Which version correctly implements this logic using the most robust conditional and nested structures? Select the best answer.

                          Answer: C

                          Explanation:
                          It first handles the non-numeric cases ("MISSING" and None) in a single condition, preventing invalid comparisons, and then cleanly checks the numeric outlier bounds using an or condition (<
                          2.5 or > 4.2) before defaulting to "Normal".


                          NEW QUESTION # 48
                          ......

                          The Python Institute PCED-30-02 certification is a valuable credential that plays a significant role in advancing the Python Institute professional's career in the tech industry. With the PCED - Certified Entry-Level Data Analyst with Python (PCED-30-02) certification exam you can demonstrate your skills and knowledge level and get solid proof of your expertise. You can use this proof to advance your career. The Python Institute PCED-30-02 Certification Exam enables you to increase job opportunities, promotes professional development, and higher salary potential, and helps you to gain a competitive edge in your job search.

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