Using Reference Lines and Dividers on Tuva (v2)
Lesson
In this tutorial, students explore the Rollercoasters dataset and learn the various ways they can use reference lines and dividers to analyze data.
Using Reference Lines and Dividers on Tuva When analyzing numerical data, we often want to identify the center, examine the spread, or calculate the percentage of values above or below a specific point. Tuva allows you to do this visually using Reference Lines and Dividers, both available directly from the toolbar. Reference lines help mark specific values, while dividers partition the distribution into meaningful sections. [---cta ⚡ Ready to practice? Jump straight into the interactive tool. ---]{border-left:#ecb606;buttons:[{"type":"enroll","text":"Enroll in series","bg":"#682D8A","color":"#ffffff","border":"#682D8A","icon":"ti ti-add"},{"type":"modeltool","text":"Try It Out Now","bg":"#ffffff","color":"#682D8A","icon":"ti ti-external","border":"#682D8A"}];} !![tuva]560x315 How It Works Follow these steps to explore reference lines and dividers: [---card Add a Reference Line Drag and drop a numerical attribute onto the x-axis From the toolbar, choose :ti[ref-line-on-x] Reference lines help you visually mark centers, cutoffs, or benchmark values. ---]{border-color:#DADFE5;} [---card Use Dividers to Partition Data From the toolbar, choose :ti[dividers] Two movable dividers appear on the graph. Drag the dividers to split the distribution into sections To view proportions, choose :ti[percent-of-cases] ---]{border-color:#DADFE5;} [---card Capture the Middle 50% Position the dividers so that the middle section contains approximately 50% of the data. ---]{border-color:#DADFE5;} [---card In a Nutshell Reference lines mark specific values on a graph. Dividers split the distribution into sections and allow you to calculate percentages and examine spread. ---]{border-color:#DADFE5;} [---cta ⚡ Try It Out Jump straight into the interactive tool. ---]{border-left:#ecb606;buttons:[{"type":"enroll","text":"Enroll in series","bg":"#682D8A","color":"#ffffff","border":"#682D8A","icon":"ti ti-add"},{"type":"modeltool","text":"Try It Out Now","bg":"#ffffff","color":"#682D8A","icon":"ti ti-external","border":"#682D8A"}];}
Topics and standards: Tutorial