Given the mean and standard deviation of a set of marks, what is
the greatest number of candidates who could have scored 100%?
Your data is a set of positive numbers. What is the maximum value
that the standard deviation can take?
95% of people in Britain should live within 10 miles of the route of the Olympic Torch tour. Is this true?
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?