Review of Probability

Six friends are going to play a ball game. Each team has 3 players. How many different team combinations are possible?

• 120

• 6

• 18

• 20

Kimberly has seven colors of lanyards. She uses three different colors to make a key chain. How many different combinations can she choose?

• 210

• 5.040

• 6

• 35

In how many ways can a group of 4 boys be selected from 10 if the oldest boy is included in each group?

• 84

• 81

• 504

• 6

Choosing 3 toppings for your sundae out of a list of 15.

• Permutation
• Combination
• Neither

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

• Permutation
• Combination
• Neither

How many combinations of 4 letters are possible from the letters A B C D E?

• 4
• 5
• 6
• 69

How would you solve?

A book club offers a choice of 8 books from a list of 40. In how many ways can a member make a collection?

• Permutation

• Combination

• Factorial

• MPC

Permutation or Combination: The student body of 30 students wants to elect a president, vice president, secretary, and treasurer.

• permutation

• combination

Permutation or Combination: Rob and Micaela are planning trips to four countries this year. There are 5 countries they would like to visit. One trip will be one week long, another two days, another two weeks, and the other a month.

• permutation

• combination

solve the following permutation: The student body of 40 students wants to elect a president, vice president, secretary, and treasurer.

• 2479595

• 2140140

• 2193360

• 4386720