MSV 4: Outlier Tester
This is a really simple but fun spreadsheet
that gives students a chance to explore the definition of an outlier that uses the IQR.
Used in the whole class setting, students' intuitions about what is likely to be an outlier
can be offered up through a range of different problems.
msv-4.xls - The Spreadsheet
Sheet 1 - the Activity, Sheet 2 - The Rule.