Python basics

What is a variable in Python?

• • A reserved keyword

• • A container for storing data values

• • A function in Python

• • A data type

Which of the following is a valid Python variable name?

• • 1st_variable

• • my_variable

• • variable-1

• • $variable

What is the data type of the variable x = '5.0'?

• float

• int

• string

• list

What does the len() function do in Python?

• • Returns the length of a list or string

• • Converts a string to lowercase

• • Returns the square root of a number

• • Rounds a floating-point number

Which of the following is a mutable data type in Python?

• int

• list

• tuple

• float