problem
In a box
Age
14 to 16
Challenge level
Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?
problem
Chances are
Age
14 to 16
Challenge level
Which of these games would you play to give yourself the best possible chance of winning a prize?
problem
The better choice
Age
14 to 16
Challenge level
Here are two games you can play. Which offers the better chance of winning?
problem
Reaction timer
Age
11 to 14
Challenge level
This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.
problem
Which spinners?
Age
14 to 18
Challenge level
Can you work out which spinners were used to generate the frequency charts?
problem
How would you score it?
Age
11 to 14
Challenge level
Invent a scoring system for a 'guess the weight' competition.
problem
Sociable cards
Age
11 to 14
Challenge level
Move your counters through this snake of cards and see how far you can go. Are you surprised by where you end up?
problem
What does random look like?
Age
11 to 14
Challenge level
Engage in a little mathematical detective work to see if you can spot the fakes.
problem
Who's the best?
Age
11 to 14
Challenge level
Which countries have the most naturally athletic populations?
problem
Olympic records
Age
11 to 14
Challenge level
Can you deduce which Olympic athletics events are represented by the graphs?
problem
Which list is which?
Age
14 to 16
Challenge level
Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?
problem
Picturing the world
Age
14 to 16
Challenge level
How can we make sense of national and global statistics involving very large numbers?
problem
Perception versus reality
Age
14 to 18
Challenge level
Infographics are a powerful way of communicating statistical information. Can you come up with your own?
problem
Box plot match
Age
14 to 16
Challenge level
Match the cumulative frequency curves with their corresponding box plots.
problem
M, M and M
Age
11 to 14
Challenge level
If you are given the mean, median and mode of five positive whole numbers, can you find the numbers?