Google Data Analytics Professional Certification Practice Test

What data type includes attributes that vary across a spectrum and are not finite?

1. Nominal data

2. Ordinal data

3. Unstructured data

4. Continuous data

The correct answer is: Continuous data

Continuous data encompasses attributes that can take an infinite number of values within a given range, reflecting a smooth spectrum rather than distinct categories. For example, measurements such as height, weight, or temperature are classified as continuous data because they can be expressed in infinitely precise units and can vary smoothly. This characteristic makes continuous data particularly suited for statistical analysis and modeling, allowing for the representation of real-world phenomena where changes can occur gradually rather than in fixed increments. Nominal data, on the other hand, represents categories without any inherent order, such as colors or types of pets, making it finite by nature. Ordinal data involves categories with a defined order but does not have consistent intervals between the ranks, as demonstrated by ratings or rankings, which again sets limits on variability. Unstructured data, while diverse and often rich in content, does not specifically refer to the spectrum of data types concerning measurement, focusing instead on formats and organization, such as text, images, or audio. Therefore, continuous data is the correct classification for attributes that fluctuate across an infinite range, making it essential for accurate representations in data analytics.