Boolean variables:

Boolean variables are referred as “bool”, commonly used as flags which gives intimation whether the condition exists.

• It can refer any of the two values, either “True” or “False”.

• Flag is used to remember something or leave a sign for the other parts of the program.

• The condition does not exist when the flag is set to false.

• The condition exists when the flag is set to true.

Example Program:

The below program demonstrates the working of “Boolean” variables...

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Chapter 3.5, Problem 19CP

Chapter 3.6, Problem 21CP

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The data type bool: Group of answer choices Can only be used in a selection statement. Can take on any expression as a value. Can take on values -1, 0 or 1. Can take on values true and false.

The value passed through the parameter is called a(n). Index argument statement number

Chapter 3 Solutions

Starting Out with Python (4th Edition)

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Solution Summary: The author explains that Boolean variables are referred to as "bool", commonly used as flags which gives intimation whether the condition exists.

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