Comprehensive Data Organization 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
Which is the main benefit of organizing 50 raw survey responses into a frequency table?
📘 Worked solution
✓Grouping repeated values into counts makes common values and patterns visible at a glance instead of buried in a raw list.
And one from the hard end
Factory line A: mean defect rate=2%, SD=0.3%. Factory line B: mean defect rate=2%, SD=1.8%. A quality manager wants the MORE PREDICTABLE line. Which should they choose, and why?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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