Lesson 6.03 Python Variables

Variables are:

• containers for storing data value

• a number

• a message input by the user

• a secret code

In Python, there is no command for declaring a variable.

• True

• False

In Python, a variable is declared as soon as you assign a value to it.

• True

• False

Which of the following statements assigns the value 100 to the variable x in Python:

• x <= 100

• x << 100

• x =100

• let x = 100

In Python, a variable may be assigned a value of one type, and then later assigned a value of a different type.

• True

• False

Select all that apply. String variables can be declared by using ' ' (single quotes) OR:

• " " (double quotes)

• ; (semicolon)

• # (hash symbol)

• ! (exclamation mark)

A variable can start with a lowercase letter, an uppercase letter, or:

• an _ underscore

• & symbol

• a number

• % a percent symbol

Variable names are NOT case-sensitive.

• True

• False

What is the output of the following code:

x = "awesome"

print("Python is " + x)

• Python is

• awesome

• Python + awesome

• Python is awesome

What is the output of the following code:

x = 5

y = 10

print(x + y)

• 5

• 10

• 15

• 0