Statistics Practice
Learn mean, median, mode, range, quartiles, graphs, and data summaries through practical statistics practice.
Open this practice ladder →Learn StatisticsSkills in this topic
- Calculate mean, median, mode, and range.
- Read data summaries and quartiles.
- Reason about distributions and missing data values.
Worked example
For 2, 4, 4, 6, 9: mean = 25/5 = 5; median = 4; mode = 4; range = 9 − 2 = 7.
How the Ladder Works
Six levels run from Warm-Up to Mastery. Warm-Up has five questions; later sets grow to eight or nine depending on the topic. Clear a level with at least 80% first-try accuracy. Every level is available from the start, and retries produce fresh questions.
Hints and worked solutions support practice. Grades 8–11 is a guide, not a restriction.
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