Challenge Level

Is it the fastest swimmer, the fastest runner or the fastest cyclist who wins the Olympic Triathlon?

Challenge Level

How can we make sense of national and global statistics involving very large numbers?

Challenge Level

Infographics are a powerful way of communicating statistical information. Can you come up with your own?

Challenge Level

Match the cumulative frequency curves with their corresponding box plots.

Challenge Level

Charlie has moved between countries and the average income of both has increased. How can this be so?

Challenge Level

Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?

Challenge Level

The mean number of students has changed, so how many students applied to a school?

Challenge Level

Can you work out the median weight of these children from the given means?

Challenge Level

The median of a set of five positive integers is one more than the mode and one less than the mean. Can you find the largest range possible?

Challenge Level

Given information about the mean, can you work out the missing numbers?

Challenge Level

If some of the audience fell asleep for some of this talk, what was the average proportion of the talk that people heard?

Challenge Level

What is the smallest possible range that these 4 integers could have?

Challenge Level

Find the value of $m$ from these statements about a group of numbers

Challenge Level

What is the largest that the mean of these numbers could be?

Challenge Level

If each number in this list is the average of the two numbers before it, what is the value of a?

Challenge Level

Can you find the mode and median number of goals scored by Beta Rovers?

Challenge Level

Can you find the mode and median number of goals scored by Gamma City?