Measures of spread
problem
About Average
Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?
article
May the best person win
How can people be divided into groups fairly for events in the Paralympics, for school sports days, or for subject sets?
problem
Maximum Scattering
Your data is a set of positive numbers. What is the maximum value
that the standard deviation can take?
problem
Spread
Given the mean and standard deviation of a set of marks, what is
the greatest number of candidates who could have scored 100%?