Can you decide whether these short statistical statements are always, sometimes or never true?
Estimate areas using random grids
Can you do a little mathematical detective work to figure out which number has been wiped out?
Play around with sets of five numbers and see what you can discover about different types of average...
How can people be divided into groups fairly for events in the Paralympics, for school sports days, or for subject sets?
Does weight confer an advantage to shot putters?