Probability Review

To enter her home, Susan has to enter a 4 digit code to the security system. How many codes are possible?

• 4,000

• 10,000

• 40

• 4

Order is NOT important

• permutation

• combination

Order is important

• permutation

• combination

The bakery is offering a specialty on their cupcakes. You can choose from 10 flavors of cake, 6 flavors of icing and 4 different toppings. How many unique cupcakes are possible?

• 20

• 240

• 16

• 180

What does (!) symbolize?

• Fundamental Counting Principle

• Factorial

• Permutation

• Combination

There are 20 students in Mrs. Sullivan's homeroom. How many ways can she choose a leader and leader's assistant?

• 1,860,480

• 2,432,902,008,176,640,000

• 15,504

• 380

There are 16 players on the basketball team. How many different combinations can be on the court at one time (remember 5 players play at a time)?

• 20,922,789,888,000

• 524,160

• 4,368

Is this situation a permutation or a combination? "How many ways can you choose 3 cars from a parking lot of 30 cars?"

• Combination

• Permutation

Is this situation a combination or a permutation? "How many different 11-letter arrangements can be made form the word MATHEMATICS?"

• Combination

• Permutation

A month of the year is randomly selected. What are the odds that it ends in the letter Y? (remember to reduce if necessary)

• 4/12

• 8/12

• 1/3

• 2/3