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

What is the formula for calculating combinations?

Back

Front

How many ways can you choose 4 siblings from 7?

Back

There are 35 ways to choose 4 siblings from 7.

Front

If you have 20 DVDs and want to take 5, how do you calculate the number of combinations?

Back

Front

Back

Front

What does 'n!' represent in combinations?

Back

'n!' (n factorial) represents the product of all positive integers up to n.

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not.

Front

How many combinations can be made from 5 color pencils if you choose 3?

Back

You can make 10 different combinations of 3 pencils from 5.

Front

If you have 10 different books, how many ways can you choose 2?

Back

Front

What is the significance of the 'r' in the combination formula?

Back

'r' represents the number of items being chosen from the total set.