Identify situations involving one-variable data and situations involving two-variable data, and explain when each type is needed
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
Is studying only the number of pets owned by each student in a class (without comparing to anything else) one-variable or two-variable data?
📘 Worked solution
✓One-variable - you're only measuring a single characteristic (number of pets) with no second variable to compare it against.
And one from the hard end
Design a research scenario about screen time that could be studied using either one-variable or two-variable data, explaining what each approach would reveal differently.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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