Averages

problem
Dopey measurement

Age

14 to 16

Challenge level

How does Snow White need to change her result after the mix-up?
problem
Bat wings

Age

11 to 14

Challenge level

Two students collected some data on the wingspan of bats, but each lost a measurement. Can you find the missing information?
problem
Grandpa's rock cakes

Age

11 to 14

Challenge level

Grandpa made a super-heavy rock cake. Five people have guessed the weight of the cake. Can you work out the weight of his cake?
problem
Marathon mission

Age

14 to 16

Challenge level

Minnie trained more for the London Marathon this year, so her speed increased. By what percentage did her time decrease?
problem
PDF

Age

16 to 18

Challenge level

Given a probability density function find the mean, median and mode of the distribution.
problem
Birdwatch

Age

7 to 11

Challenge level

Have a look at this data from the RSPB 2011 Birdwatch. What can you say about the data?
problem
Match the matches

Age

7 to 11

Challenge level

Decide which charts and graphs represent the number of goals two football teams scored in fifteen matches.
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?
problem
How would you score it?

Age

11 to 14

Challenge level

Invent a scoring system for a 'guess the weight' competition.
problem
About average

Age

11 to 14

Challenge level

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