Discrete Math: Unit 2 Review Combinatorics

Front

What is the formula for calculating combinations?

Back

Front

What is the formula for calculating permutations?

Back

Front

How many ways can you arrange 5 different books on a shelf?

Back

Front

If a quiz has 5 questions and each question has 5 answer choices, how many ways can students answer the quiz?

Back

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not. For example, choosing A, B, C is different from choosing C, B, A in permutations but the same in combinations.

Front

How many different passwords can be created using 36 characters (26 letters + 10 digits) without repeating any character?

Back

Front

A restaurant offers 7 sides, 4 entrees, and 2 desserts. How many different lunches can you order if you want one entree and one side?

Back

Front

How many different lunches can you order if you want one entree and either a dessert or a side?

Back

Front

What is the total number of ways to choose 3 items from a set of 10?

Back

Front

If a quiz has 5 questions and each answer can only be used once, how many different ways can students answer the quiz?

Back