Read and alter existing code involving the analysis of data in order to inform and communicate decisions, and describe the effect of changes on outcomes and efficiency
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
Code meant to find the minimum value accidentally uses the maximum function. Identify the correct fix.
📘 Worked solution
✓The function call needs to switch from max(data) to min(data) so it actually returns the smallest value.
And one from the hard end
Code recalculates the same statistical measure inside a loop instead of calculating it once outside. Identify and correct the inefficiency, and explain the impact for 100,000 data points.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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