Averages

Play around with sets of five numbers and see what you can discover about different types of average...

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

Can you do a little mathematical detective work to figure out which number has been wiped out?

Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?

Can you decide whether these short statistical statements are always, sometimes or never true?

Invent a scoring system for a 'guess the weight' competition.

Start with two numbers and generate a sequence where the next number is the mean of the last two numbers...

Decide which charts and graphs represent the number of goals two football teams scored in fifteen matches.

Are these statistical statements sometimes, always or never true? Or it is impossible to say?