Choose a Chart that Preserves the Meaning

Supplied materials

• Paper and pencil; answers may also be spoken or typed.
• All cases, labels, numbers and rules are supplied on this page. No real account, private information or purchase is needed.

Learn the idea

A chart represents data using visual rules. A bar chart can compare category counts; a line chart can show values over ordered time. A table supplies precise values and a text description can explain patterns. The right display depends on the question, not on decoration.

Match the data type and question to the stated chart purpose, retaining labels and units. Do not join unrelated category counts as though they form a time sequence.

Use this supplied case: Compare counts of three toy categories. Which representation best fits the stated purpose? Use the details in this example. Say which detail helped you choose. This pretend example does not tell us how every real system works.

1. Follow the worked example one step at a time. Say or draw what happens.
2. Match the data type and question to the stated chart purpose, retaining labels and units.
3. Say which detail makes the example answer fit. Pick another answer and say why it does not fit.
4. Try the question and practice questions. Read the rule again if your answer does not match the explanation.

Check your reasoning

Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.

Take it further

New data records a value on days 1, 2, 3. A labeled line chart can show change over time; provide exact table values and a text description.

Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.