There are **23** NRICH Mathematical resources connected to **Comparing data**, you may find related items under Handling, Processing and Representing Data.

Match the cumulative frequency curves with their corresponding box plots.

With access to weather station data, what interesting questions can you investigate?

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

This problem explores the range of events in a sports day and which ones are the most popular and attract the most entries.

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

Can you put these mixed-up times in order? You could arrange them in a circle.

Which countries have the most naturally athletic populations?

Find the frequency distribution for ordinary English, and use it to help you crack the code.

Have a look at this table of how children travel to school. How does it compare with children in your class?

A geographical survey: answer the tiny questionnaire and then analyse all the collected responses...

How was the data for this problem compiled? A guided tour through the process.

Where do people fly to from London? What is good and bad about these representations?

Anna, Ben and Charlie have been estimating 30 seconds. Who is the best?

Build a mini eco-system, and collect and interpret data on how well the plants grow under different conditions.

How do decisions about scoring affect who wins a combined event such as the decathlon?

Letters have different values in Scrabble - how are they decided upon? And would the values be the same for other languages?

Substitution and Transposition all in one! How fiendish can these codes get?

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

When Charlie retires, he's looking forward to the quiet life, whereas Alison wants a busy and exciting retirement. Can you advise them on where they should go?

In this problem you will do your own poll to find out whether your friends think two squares on a board are the same colour or not.

You may like to read the article on Morse code before attempting this question. Morse's letter analysis was done over 150 years ago, so might there be a better allocation of symbols today?

Like all sports rankings, the cricket ratings involve some maths. In this case, they use a mathematical technique known as exponential weighting. For those who want to know more, read on.

Can you make sense of information about trees in order to maximise the profits of a forestry company?