Combinations

Front

What is a combination?

Back

A combination is a selection of items from a larger set where the order of selection does not matter.

Front

How do you calculate combinations?

Back

Front

What does the symbol C(n, r) represent?

Back

C(n, r) represents the number of combinations of n items taken r at a time.

Front

If you have 12 books and want to choose 8, how many combinations can you make?

Back

Front

How many combinations of 4 letters can be formed from the letters A, B, C, D, E?

Back

Front

What is the difference between combinations and permutations?

Back

In combinations, the order does not matter, while in permutations, the order does matter.

Front

How many different teams of 4 players can be formed from 9 players?

Back

Front

If you have 20 DVDs and want to take 5 on vacation, how many different sets can you take?

Back

Front

How many different 3-topping sundaes can be made from 15 toppings?

Back

Front

What is the factorial of a number?

Back

The factorial of a number n, denoted as n!, is the product of all positive integers up to n.