Tables, Charts, and Data Displays
Ages 16–18Difficulty adapts to you
Tables, Charts, and Data Displays
The display must match the data. Bar charts compare categories with separated bars; histograms display continuous intervals with touching bars; pie charts show parts of a whole; time-series graphs show change over time. Always read the scale and units.
Your goals
- ✓You can choose and interpret frequency tables, bar charts, histograms, pie charts, and time-series graphs.
- ✓You can use Tables, Charts, and Data Displays, model correctly.
- ✓You can use the definitions, units, assumptions, and examples to check your answer.
Words to know
- Tables, Charts, and Data Displays:
- Choose and interpret frequency tables, bar charts, histograms, pie charts, and time-series graphs.
- model:
- A rule or representation used to describe a situation and make a prediction.
Examples
- 1A histogram interval of 10–20 represents values in that class, not one value at 15.
- 2A sector angle is frequency ÷ total frequency × 360°.
Check these
- • Do not skip the meaning of a term or give a result without explaining what it means.
- • Keep every number, symbol, label, and unit in its correct place.
- • Show enough working to check how you reached your answer.
Helpful habits
- • Read the whole question before choosing what to do.
- • Show one clear step at a time and check each step.
- • If you are stuck, draw a model, try smaller numbers, or revisit the example.
Now try your own
Create your own tables, charts, and data displays example, solve it, and explain how you checked it.
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Helpful Hints“Hint: Break big problems into smaller steps!”