Data Analytics and Visualisation DAY - 2

Which of the following is NOT a valid data type in Python?

• Integer

• Float

• Boolean

• String (all uppercase)

Answer explanation

The string "string (all uppercase)" is not a valid data type in Python because Python's built-in string data type is case-sensitive and does not have a specific representation for strings written entirely in uppercase letters.

What operator is used for string concatenation in Python?

• +

• *

• /

• %

Answer explanation

The "+" operator is used for string concatenation in Python, allowing the combination of multiple strings into a single string.

What keyword is used to define a function in Python?

• define

• create

• def

• function

What does the print( ) function do in Python?

• Stores Data in a variable

• Displays output on the console

• Reads data from a file

• Performs calculations

How do you access the second element in a python list named data?

• d a t a [ 1 ]

• d a t a . a t ( 1 )

• d a t a . g e t ( 2 )

• d a t a ( i n d e x = 1 )

Answer explanation

You can access the second element in a Python list named "data" using indexing with square brackets like this: "data[1]". Python uses zero-based indexing, so the second element has an index of 1.

In Python, what is the term used to describe the process of executing code line by line?

• Interpretation
• Compilation

• Execution

• Iteration

The if statement allows you to execute code conditionally. The syntax includes an else statement. True or False?

• True
• False

A loop that repeats a block of code until a condition is met is called a/an ________ loop.

• while
• do while

• for

• counter

Comments in Python are used to explain code and are ignored by the interpreter. They begin with the hash symbol (#). True or False?

• True

• False

NumPy stands for Numerical Python. What is the main purpose of NumPy?

• Web Scraping

• Data visualization

• Numerical computations with arrays

• String manipulation