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Python Institute PCED-30-02 Exam Syllabus Topics:

Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions:

1. You have collected sales data and want to compute the average using the NumPy library.
Which option correctly shows how to install NumPy and use it in your code to perform this task?

A) To install NumPy:
pip install numpy
Then run this code:
import numpy as np
data = numpy.arr([10, 20, 30])
print(numpy.mean(data))
B) To install NumPy:
pip install numpy as np
Then run this code:
import np
data = np.array([10, 20, 30])
print(np.mean(data))
C) To install NumPy:
from pip install numpy
Then run this code:
import numpy as np
data = np.array([10, 20, 30])
print(np.mean(data))

2. What will be the output of the following code?

A) 5 10
B) 5 5
C) 10 5
D) 10 10

3. 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?

A) Error
B) False
C) None
D) True

4. 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.

A) It uses unstructured interviews to validate automated tracking, improving bias detection.
B) It limits sampling to one demographic, ensuring high-quality data within a specific group.
C) It relies on observational methods, which are more accurate than surveys or sensors.
D) It combines automated data collection with representative sampling, reducing the risk of bias.

5. Which of the following statements about Python functions are correct? (Choose two.)

A) Default parameters must always come before required ones in the parameter list.
B) Positional arguments must be passed in the order defined, while keyword arguments can be passed in any order using their parameter names.
C) If a function does not contain a returnstatement, it returns Noneby default.
D) A function cannot call itself or be passed as an argument to itself.
E) passexecutes the function body and returns its result.
F) Functions can only return numeric values or strings.

Solutions: