This math topic focuses on probability and factorial equations related to the arrangements of card sequences. It tests the ability to determine the number of valid arrangements of cards (given repeats and without) to remain in ascending order, using factorial notation. Questions may require learners to apply factorial calculations directly or solve for arrangements based on specific repeats and order conditions. The problems require understanding factorial concepts in a context of probability, crucial for grasping more complex topics in probability and statistics.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.