1 
Probability/Permutations 
Easy 
Undergradguate 
level1 
2 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Intermediate 
GCSE 
Higher 
3 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Easy 
GCSE 
Higher 
4 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Hard 
GCSE 
Higher 
5 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Intermediate 
GCSE 
Higher 
6 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Easy 
GCSE 
Higher 
7 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Intermediate 
GCSE 
Higher 
8 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Hard 
GCSE 
Higher 
9 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Easy 
GCSE 
Higher 
10 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Intermediate 
GCSE 
Higher 
11 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Easy 
Alevel 
Higher 
12 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Hard 
GCSE 
Higher 
13 
Probability/Permutations 
Easy 
Undergradguate 
level1 
14 
Probability/Permutations 
Easy 
Undergradguate 
level1 
15 
Probability/Permutations 
Easy 
Undergradguate 
level1 
16 
Probability/Permutations 
Intermediate 
Undergradguate 
level1 
17 
Probability/Permutations 
Intermediate 
Undergradguate 
level1 
18 
Probability/Permutations 
Intermediate 
Undergradguate 
level1 
19 
Probability/Permutations 
Easy 
Undergradguate 
level1 
20 
Probability/Permutations 
Easy 
Undergradguate 
level1 
21 
Statistics\Descriptive stats\Measures of dispersion\Sample\Deviation 
Easy 
GCSE 
Higher 
22 
Statistics\Descriptive stats\Measures of dispersion\Sample\Variance 
Hard 
GCSE 
Higher 
