Collect data using appropriate sampling techniques, and organize it in relative-frequency tables
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 survey of 10 students shows 4 prefer chocolate milk. What is the relative frequency of chocolate milk, as a percent?
📘 Worked solution
✓4 out of 10 students prefer chocolate milk, which is 40%.
And one from the hard end
Design a stratified sampling plan for surveying favorite lunch foods across 3 grades (Grade 4=100 students, Grade 5=120, Grade 6=80), proportionally sampling a total of 60 students, then explain how you'd calculate the relative-frequency table.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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