The last one my little sister needs help with

Table lables are used to stay organized and to read raw data even quicker than a mess of entries. Instead of having to read through every entry, a quick scan down a certain label's column helps to analyze one portion of the data.

For proper understanding

Step-by-step explanation:

The goal of column and titles headings is to simplify and clarify the table, allowing the reader to understand the components of the table quickly. Therefore, column ant titles should be brief and descriptive and should include units of analysis.