Google Data Analytics Professional Certification Practice Test

What type of data comprises attributes with two possible values only?

1. Categorical data

2. Boolean data

3. Quantitative data

4. Ordinal data

The correct answer is: Boolean data

The correct answer, Boolean data, refers to a specific type of data that can have only two possible values, typically represented as true or false, yes or no, or 1 and 0. This binary nature makes Boolean data particularly useful in scenarios where a decision or categorization needs to be made based on a clear, dichotomous criterion. Boolean data is essential in logical operations and data analysis, as it allows for straightforward conditions and comparisons. Understanding Boolean data is crucial for effectively using programming and data analytics tools since many decision-making processes in algorithms depend on these binary options. In contrast, categorical data encompasses variables that can take on multiple categories or groups, such as colors or types of animals. Quantitative data involves numerical values that can be measured or counted, like age or income. Ordinal data consists of categories that have a specific order or rank but that do not have precise numerical differences between them, such as satisfaction ratings (e.g., satisfied, neutral, dissatisfied). These distinctions highlight why Boolean data is uniquely characterized by its two-valued attribute.