Illustrative Mathematics
Illustrative Mathematics: S Ic Why Randomize?
The exercise demonstrates that judgment (non-random) samples tend to be biased in the sense that they produce samples that are not balanced with respect to the population characteristics of interest. Students will estimate the mean...
Illustrative Mathematics
Illustrative Mathematics: S Ic Strict Parents
In this task, students want to estimate the proportion of students in the school who thought of their parents as "strict". They do not have time to interview all 1000 students, so they plan to obtain data from a sample of students....
Illustrative Mathematics
Illustrative Mathematics: S Ic School Advisory Panel
How do you choose the best sampling method for a specific task? This activity asks the students to decide the best way out of four choices to select three students to serve on a school advisory panel. Students need to defend their...