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Neeraj from Wilson's School noticed that sets A, D and E had more values greater than 70 than sets B, C and E.
Elliot from Wilson's School used the range:
I used the ranges of each set of data, to work out which sets go together. Alison's temperatures were more likely to have a greater range, whereas Charlie's data, on the weights of teenagers, is likely to have a small range. Therefore, I concluded that A, D and E, which have the largest ranges, were the temperatures, while B, C and F were the teenager's weights.
Randolph and Ethan, both from the USA, and Jelle from the Netherlands used another measure of spread, the standard deviation of each set:
The standard deviations for each set (to 3 decimal places) are:
A: 10.826
B: 4.527
C: 5.756
D: 9.520
E: 10.742
F: 5.229
ADE belongs to Alison
BCF belongs to Charlie
Finally, here is Niharika's solution which uses several different approaches.
Which List Is Which?
Age 14 to 16
Challenge Level 
Neeraj from Wilson's School noticed that sets A, D and E had more values greater than 70 than sets B, C and E.
Elliot from Wilson's School used the range:
I used the ranges of each set of data, to work out which sets go together. Alison's temperatures were more likely to have a greater range, whereas Charlie's data, on the weights of teenagers, is likely to have a small range. Therefore, I concluded that A, D and E, which have the largest ranges, were the temperatures, while B, C and F were the teenager's weights.
Randolph and Ethan, both from the USA, and Jelle from the Netherlands used another measure of spread, the standard deviation of each set:
The standard deviations for each set (to 3 decimal places) are:
A: 10.826
B: 4.527
C: 5.756
D: 9.520
E: 10.742
F: 5.229
ADE belongs to Alison
BCF belongs to Charlie
Finally, here is Niharika's solution which uses several different approaches.
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