Statistical Investigation Worksheets
Free printable statistical investigation worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from classify a question as statistical or not at the easy level through to identify sampling bias and its impact at the advanced level.
CCSS.6.SPLK20.10
Difficulty Levels
Beginner
- Concepts
- Classify a question as statistical or not
- Number Range
- simple yes/no classification
- Steps
- 1 step
- Example
- Is "What is your favourite colour?" a statistical question?
Easy
- Concepts
- Identify what data to collect for a survey
- Number Range
- categorical preferences
- Steps
- 1–2 steps
- Example
- How would you find out if students prefer cats or dogs?
Medium
- Concepts
- Distinguish census vs sample
- Number Range
- school populations 200–1000
- Steps
- 1–2 steps
- Example
- A school has 500 students. You survey 50. Census or sample?
Hard
- Concepts
- Identify sampling bias and its impact
- Number Range
- convenience/biased samples
- Steps
- 2 steps
- Example
- Why might surveying only your friends give biased results?
Grade Availability
Statistical Investigation worksheets are available for Grades 6–10. Problems are automatically adjusted to match grade-level expectations in number range, complexity, and notation.
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