Ch12 Test Counting Principle and Probability

How many events are involved when rolling two six-sided dice?

• 1

• 2

• 6

• 12

How many different outcomes are possible when rolling two six-sided dice?

• 12

• 36

• 24

• 18

A password consists of 3 letters followed by 2 digits. How many events are involved?

• 2

• 6

• 5

• 1

A password consists of 3 letters followed by 2 digits. How many different passwords can be created if repetition of characters is allowed?

How many events are involved when creating a 5-digit PIN code?

• 1

• 2

• 3

• 5

How many different 5-digit PIN codes can be created if repetition of digits is not allowed?

How many different 5-digit PIN codes can be created if repetition of digits IS allowed? (Write your answer out like this 7x3x4 with no spaces)

(a)  

How many different ways can 5 horses finish a race if there are no ties?

5 horses are in a race. How many different ways can 3 horses finish the race if there are no ties?

5 horses are in a race. How many different ways can 3 horses finish the race if there are no ties?

• nPr(5,3)

• nPr(3,5)

• nCr(5,3)

• nCr(3,5)

• nCr(3,3)