Data interpretation
Find the values you need before calculating.
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Example
Example
Example · Standard
What is the total output of both series across A, D?
Practice data: units produced
Select a point, bar or table value to read it.
| Period | Series 1 | Series 2 |
|---|---|---|
| A | ||
| B | ||
| C | ||
| D |
Explore the idea
Data values: 4, 5, 5, 6, 7, 9
- Mean
- 6
- Median
- 5.5
- Range
- 5
- Population standard deviation
- 1.63
Change the controls to try new cases. These changes do not alter the original question.
Read charts and combine values.
Add or compare two series across two rows
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6 questions · No time limit
- Questions answered
- 0 / 6
- Active time
- 0:00
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Read the question, find the relevant values, and choose the result.
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Reload pageExplore the method
Read labels and units, then combine two series to find totals, differences, shares and percentage changes.
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is usedHelp
Read the labels and units first. Add the values named in the question. For a percentage increase, divide the increase by the starting total. For a share, divide the requested part by the combined total. All data is fictional.
Each round has six questions and no time limit. Choosing an answer locks it. Review the steps, then move to the next question. Finish all six to save the round. Active time includes reviewing the steps, but does not count time when this page is hidden. Speed does not affect your score.
Use Tab and Enter or Space to choose an answer. The number keys also select answers, except when another control is focused. After an answer, Enter goes to the next question.
Original practice puzzles, not a standardized assessment.
About this practice
Learn a method
Read data before calculatingFind the values you need before calculating.
For a broader mix of practices, explore the statistics practice test. Sign in free to start a test.
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On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is used