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## 'Data Matching' printed from http://nrich.maths.org/

Patrick from Woodbridge school sent in the following
solution:

"I made frequency graphs of the data sets and I tried to find
similar features.

1. A G K M have no odd numbers so they are very likely to be one
set.

2. D E L N have no early numbers or late numbers (they are all
grouped around the middle)

3. C F H P have the same general shape - a rise up to 17 ish, then
a very steep drop.

4. B I J O each have almost all the numbers centred in two peaks at
around 7 and 13.

E could possibly be in group 4. C and H are not quite as well
defined as the others. I would say that the best example of my
definitions in each group is:

1. (none needed)

2. D

3. F

4. B