Data Collection, Sampling, and Bias
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
What is a "population" in statistics?
📘 Worked solution
✓The population is the entire group being studied, not just part of it.
And one from the hard end
"Compare surveying every student in the cafeteria during one lunch period vs. randomly selecting 50 students from the full enrollment list. Which is more representative?"
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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