Comprehensive Data Analysis Applications
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Compare Class A (mean=78) to Class B (mean=82). Which performed better on average?
📘 Worked solution
✓Class B.
And one from the hard end
A scatter plot of hours of TV watched vs. exam scores shows a strong negative correlation. What decision could this reasonably inform, without proving causation?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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