Google Data Analytics Professional Certification Practice Test

What does a Boolean data type represent?

1. A sequence of characters

2. A value that is either NUMERIC or STRING

3. A data type with only two possible values

4. A list of elements

The correct answer is: A data type with only two possible values

A Boolean data type represents a data type that can hold only two possible values, typically denoted as true and false. This characteristic allows Boolean values to be particularly useful in programming and data analysis, where they can be employed in conditional statements, logical operations, and flow control to determine the outcome of various expressions. For instance, in a data analysis context, a Boolean value can indicate whether a particular condition is met (true) or not (false), which is essential for making decisions based on data. This contrasts with other data types, which might represent a broader range of values or constructs. The simplicity of Boolean values helps in creating clear and effective logical conditions. In contrast, a sequence of characters represents strings, a data type that holds text data. Numeric or string values refer to other types of data entirely, such as integers, floats, or textual information. Lastly, a list of elements is more complex and typically relates to arrays or collections, distinguishing it further from the binary nature of Boolean values.