Match the graph to the kind of data you have.
Read this first — it covers the idea in plain language with a worked example.
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.
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.
Tip
Histograms are the go-to for showing the frequency of ranges, like test-score bands.
Watch the main video, then check the second take if you want another explanation.
Try a worksheet or work through some problems before the quiz.
Mixed practice for center, spread, and data displays.
A couple of questions to make sure this topic stuck. Retake as many times as you want.
Choosing the Right Display
Which display is best for showing the frequency of test-score ranges?
