Sampling Distributions and Margin of Error
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
What is a "sampling distribution"?
📘 Worked solution
✓The distribution of a statistic (like the mean) calculated from many different samples of the same population.
And one from the hard end
"A city survey of 900 residents finds 44% support for a new bylaw, with a margin of error of ±3.3% at 95% confidence. A council member claims support is definitely below 50%. Evaluate this claim using the confidence interval, and explain one way to make the estimate more precise."
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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