Averages

There are 41 NRICH Mathematical resources connected to Averages

problem

Favourite

Unequal averages

Age

11 to 14

Challenge level

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

problem

Favourite

Half a minute

Age

11 to 14

Challenge level

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

problem

Favourite

Wipeout

Age

11 to 16

Challenge level

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

problem

Favourite

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?

problem

Favourite

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

Favourite

Statistical shorts

Age

11 to 16

Challenge level

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

problem

Favourite

Stats statements

Age

16 to 18

Challenge level

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

problem

Favourite

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

Favourite

Searching for mean(ing)

Age

11 to 16

Challenge level

If you have a large supply of 3kg and 8kg weights, how many of each would you need for the average (mean) of the weights to be 6kg?

problem

Favourite

For richer for poorer

Age

14 to 16

Challenge level

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

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For younger learners

Averages

Unequal averages

Half a minute

Wipeout

About average

Birdwatch

Statistical shorts

Stats statements

M, m and m

Searching for mean(ing)

For richer for poorer