Permutation and Combinations Funflashcard

Front

How many different arrangements can be made from the word 'COLLEGE'?

Back

1260

Front

Is selecting a lead and an understudy for a school play a permutation or a combination?

Back

Permutation

Front

What is the formula for Permutations?

Back

n! / (n-r)!

Front

Choosing 3 toppings for your sundae out of a list of 15 is an example of what?

Back

Combination

Front

How many ways can a King and a First Runner-up be chosen from 7 candidates?

Back

42

Front

Define Permutation.

Back

An arrangement of objects in a specific order.

Front

Define Combination.

Back

A selection of items without regard to the order.

Front

What is the factorial of a number n (n!)?

Back

The product of all positive integers up to n.

Front

If n = 5 and r = 3, how many permutations are there?

Back

60 (5! / (5-3)!)

Front

If n = 10 and r = 4, how many combinations are there?

Back

210 (10! / (4! * (10-4)!))