Permutations and Combinations

Which of the following is an example of combination?

• Form a passcode with 4 digits

• Students line up in a queue to assembly

• Choose 4 students in a class committee

• Choose the chairperson, secretary and treasurer in a club

How many ways can two jellybeans be chosen from a bag of 15 unique jellybeans. 

There are 68 juniors at the high school. How many ways can they elect a president, vice president, and secretary?

• 300696

• 317750

• 375

• 1953125

If Lucas owns 11 hoodies, how many ways can he choose four to bring on vacation?

• 44

• 7920

• 330

• 121

Picking a team of three people out of a group of 10.

• Permutation
• Combination
• Neither

Rhea has 10 basketballs, each of a different colour. She only has time to shoot 5 hoops before going to bed. How many different arrangements can the balls be thrown into the hoops?

Rylan’s basketball team has 11 players. How many ways can his coach choose five starting players? Positions do not matter

• 462

• 55440

• 55

• 1000

Ashlyn needs to bring a dessert to her dinner party. If the bakery has eight pies to choose from, how many ways can Ashlyn choose three?

How many ways can you choose a manager and assistant from a 9-person task force?