Python Institute PCED - Certified Entry-Level Data Analyst with Python 認定 PCED-30-02 試験問題:
1. 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?
A) None
B) 5
C) 10
D) Error
2. 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.
A) 
B) 
C) 
D) 
3. You are creating a presentation slide to communicate findings about student stress levels across four categories over a six-month period. You include the following line graph in your presentation:
Your goal is to help your audience clearly understand trends in stress levels over time.
What is the highest problem with this visual presentation? Select the best answer.
A) The months should be replaced with week numbers to provide more detailed insight.
B) The chart should be in 3D format to show depth and highlight differences more clearly.
C) The graph doesn't explain what each stress level means or show exact values for each month, which limits interpretation.
D) The font used in the chart is hard to read; using larger, uppercase text would improve clarity.
E) The lines are too light and similar in color, making it difficult to distinguish between trends.
4. Consider a Python program that assigns a string value "5" to a variable and then attempts to multiply it by an integer 3. The programmer expects numeric multiplication. What will actually happen when the code is executed?
A) "555"
B) 8
C) 15
D) Error
5. You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
Which line should you insert to correctly clean and parse the input?
A) fields = line.split(', ').trim()
B) fields = line.split().strip(', ')
C) fields = line.replace(', ', '|').split('|')
D) fields = line.strip().split(', ')
質問と回答：
| 質問 # 1 正解： C | 質問 # 2 正解： B | 質問 # 3 正解： E | 質問 # 4 正解： A | 質問 # 5 正解： D |
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