The categories by which data are grouped are called ________. 

Verified step by step guidance

1. Understand that in statistics, when we collect data, we often organize it into groups to make analysis easier.
2. These groups or labels that classify data into different segments are known as categories.
3. The specific term used to describe these categories or groups in which data is classified is called 'variables' or more precisely 'categorical variables' when referring to qualitative data.
4. However, the general term for the groups themselves, by which data is grouped, is 'classes' or 'categories'.
5. Therefore, the blank in the sentence 'The categories by which data are grouped are called ________.' should be filled with the word 'categories' or 'classes', depending on the context.

Key Concepts

Categorical Variables

Categorical variables represent data that can be divided into distinct groups or categories, such as gender, color, or type. These categories are qualitative and describe attributes rather than numerical values.

Categories (or Levels)

Categories, also known as levels, are the specific groups or labels within a categorical variable. For example, in the variable 'color,' categories might be red, blue, and green, which help organize and analyze data.

Data Grouping

Data grouping involves organizing data points into categories to simplify analysis and interpretation. Grouping helps identify patterns and relationships within qualitative data by sorting observations into meaningful classes.