Probability
Beginner · 10 levels, 5 problems each.
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- 01 Beginner
Bags of four and five
5 problems · 1 min - 02 Beginner
A bag of six
4 problems · 1 min - 03 Beginner
Small bags
10 problems · 2 min - 04 Beginner
A bag of eight
5 problems · 1 min - 05 Beginner
A bag of ten
7 problems · 2 min - 06 Beginner
Up to ten
10 problems · 2 min - 07 Beginner
A bag of twelve
8 problems · 2 min - 08 Beginner
Up to twelve
10 problems · 2 min - 09 Beginner
Impossible and certain
10 problems · 2 min - 10 Beginner
Up to twelve review
10 problems · 2 min