Probability: Permutations & Combinations

Front

What is a permutation?

Back

Front

What is a combination?

Back

Front

How many ways can 5 DVDs be chosen from 20 DVDs?

Back

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not. For example, selecting A, B, C is different in permutations (ABC) but the same in combinations (A, B, C).

Front

How many different ways can 8 cheerleaders be chosen for 3 positions?

Back

Front

How many different ways can 8 violinists be seated in a row?

Back

Front

What is the formula for calculating permutations?

Back

Front

What is the formula for calculating combinations?

Back

Front

If a license plate has 6 characters, each can be a number (0-9) or a letter (A-Z), how many possible plates are there?

Back

Front

What does 'n!' represent in permutations and combinations?

Back

'n!' (n factorial) represents the product of all positive integers up to n. It is used to calculate the total arrangements of n objects.