Choosing the Right Display

Three common displays

A dot plot shows every single value, so it's best for small data sets. A histogram groups numeric data into ranges (bins), which works well for larger sets. A box plot summarizes data with five key numbers and is great for comparing two groups.

When you study three common displays, slow down and write one example in your notebook without looking at the screen. That active step is what turns reading into learning.

Picking one

Ask what the question needs. Counting how often each value appears? Use a dot plot or histogram. Comparing the spread of two groups? A box plot makes that easy.

When you study picking one, slow down and write one example in your notebook without looking at the screen. That active step is what turns reading into learning.

Why this matters

Choosing the Right Display shows up constantly in match the graph to the kind of data you have. It also connects to what you will see on homework, quizzes, and the next unit in this grade.

Teachers often move fast in class. This page is here so you can pause, re-read, and practice until the idea feels familiar, not just until you have memorized a rule for one day.

Common mistakes to avoid

Rushing to the answer without writing steps. Middle-school math rewards clear work, and you catch errors earlier when steps are visible.

Mixing up similar ideas from the same topic. If two terms feel alike, make a two-column note: what is the same, what is different, and one example of each.

Key ideas from this lesson

1. Three common displays
2. Picking one