Standardized Scores and Comparing Data Sets
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
A z-score tells you how many ___ a value is from the mean.
📘 Worked solution
✓A z-score expresses distance from the mean in units of standard deviation, not raw units.
And one from the hard end
Candidate O: score 3.6 GPA (program mean=3.0, SD=0.3). Candidate P: 78% (program mean=65%, SD=8%). Who performed better relative to their program?
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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