Day2 classwork: Permutation and combination

Front

What is a permutation?

Back

A permutation is an arrangement of items in a specific order.

Front

What is a combination?

Back

A combination is a selection of items without regard to the order.

Front

How many ways can you choose 2 toppings from 5 options?

Back

10 ways.

Front

If you flip a coin and roll a dice, how many outcomes are there?

Back

12 outcomes.

Front

What does 10P5 mean?

Back

It means permutations with 10 choices and 5 positions.

Front

How many '3' cards are in a deck of playing cards?

Back

There are 4 '3' cards.

Front

What is the formula for permutations?

Back

The formula is n! / (n - r)! where n is the total items and r is the items to arrange.

Front

What is the formula for combinations?

Back

The formula is n! / [r!(n - r)!] where n is the total items and r is the items to choose.

Front

How many different pizzas can you make with 2 toppings from 5 options?

Back

10 different pizzas.

Front

If you have 3 family members, how many ways can they sit in 3 seats?

Back

6 ways.