Python Quiz

Elijah, Ava, and Abigail are learning Python together. They came across this line of code: `print(type([1, 2, 3]))`. What will it output?

• ``

• ``

• ``

• ``

Answer explanation

The output of the code snippet is '', which indicates that the type of the object [1, 2, 3] is a list.

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DOK Level 1: Recall

Hey there, Charlotte! If you were to store a lovely poem or a fun story in Python, which data type would you typically use?

• List

• Dictionary

• String

• Tuple

Answer explanation

The Python data type typically used for storing textual data is String.

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DOK Level 1: Recall

Imagine Isla, Maya, and Emma are playing a game where they need to guess the number of unique numbers in a list. They are given the list [1, 2, 2, 3, 4, 4, 4]. What will `len(set([1, 2, 2, 3, 4, 4, 4]))` return?

• 7

• 4

• 5

• 3

Answer explanation

The code creates a set from the list [1, 2, 2, 3, 4, 4, 4], which removes duplicates. The set will have elements [1, 2, 3, 4], so the length of the set is 4.

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DOK Level 2: Skill/Concept

What does the `if` statement do in Python?

• It loops through a block of code a specified number of times.

• It stops the execution of the program.

• It executes a block of code if a specified condition is true.

• It declares a variable.

Answer explanation

The `if` statement in Python executes a block of code if a specified condition is true, highlighting the correct choice.

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DOK Level 1: Recall

What will be the output of the following code snippet? ```python x = 10 if x > 5: print("Greater") else: print("Smaller") ```

• Greater

• Smaller

• Error

• No output

Answer explanation

The code snippet checks if x is greater than 5, which is true (x=10), so it prints 'Greater'. Therefore, the correct output is 'Greater'.

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DOK Level 2: Skill/Concept

Which Python keyword is used to define a function?

• `function`

• `def`

• `func`

• `declare`

Answer explanation

The Python keyword used to define a function is `def`. It is used at the beginning of a function definition to indicate the start of the function block.

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DOK Level 1: Recall

Evelyn is working on a Python project and needs to calculate the square root of a number. Which syntax should she use to correctly return the square root in her function?

• `return sqrt(x)`

• `return x ** 0.5`

• `return x^2`

• `return x * x`

Answer explanation

The correct syntax to return the square root of a number in a Python function is 'return x ** 0.5'.

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DOK Level 2: Skill/Concept

Hey there, Anika is diving into the world of Data Analysis with Python! She came across several libraries but got puzzled with one. Can you help her identify which of the following is not a core library in Python used for Data Analysis?

• NumPy

• SciPy

• TensorFlow

• Pandas

Answer explanation

TensorFlow is not a core library in Python used for Data Analysis, unlike NumPy, SciPy, and Pandas which are commonly used for this purpose.

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DOK Level 1: Recall

Imagine Abigail is working on a Python project and needs to read a text file. How should she open the file for reading as a text file?

• `open('file.txt', 'r')`

• `open('file.txt', 'w')`

• `open('file.txt', 'a')`

• `open('file.txt', 'rb')`

Answer explanation

To open a file for reading as a text file in Python, you use the 'open' function with the mode 'r'. Therefore, the correct choice is 'open('file.txt', 'r')'.

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DOK Level 1: Recall

Imagine Evelyn is working on a Python project and uses the with statement for file handling. What advantage does this provide?

• It ensures that the file is closed when the block inside the with is exited, preventing any file corruption or data loss.

• It writes data into the file automatically without needing explicit commands.

• It deletes the file after Evelyn is done with her operations, keeping her workspace clean.

• It magically copies the file contents to another file as a backup.

Answer explanation

It ensures that the file is closed when the block inside the `with` is exited.

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DOK Level 2: Skill/Concept