Python Institute PCED-30-02 : PCED - Certified Entry-Level Data Analyst with Python

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

1. A Python script evaluates the expression len(" "). The programmer assumes it might be zero because it looks empty. What will the actual result be?

A) 1
B) 0
C) None
D) Error

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

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

3. 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?

A) 24
B) 20
C) 10
D) 14

4. 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)

5. 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?

A) 49
B) 28
C) 35
D) 19

Solutions: