SME
Grade 11 Math
Sampling methods and study design: surveys, experiments and observational studies
The main lesson, then each kind of problem it solves.
Sampling methods and study design: surveys, experiments and observational studies
Main lesson
Which sampling method?
Use this for “A school picks 20 students at random from each grade. Which sampling method is this?”
Survey, observational study or experiment?
Use this for “Researchers compare the heart rates of runners and non-runners. What kind of study is this?”
Name the bias
Use this for “A website asks readers to vote in a poll. What kind of bias is this?”