Permutations, combinations and probability

What is 5 factorial?

• 1 60
• 2 120
• 3 720
• 4 25

How many ways can 3 books be arranged on a shelf?

• 1 3
• 2 12
• 3 6
• 4 9

What is 5C2?

• 1 10
• 2 5
• 3 25
• 4 20

A die is thrown once. The probability of an even number is:

• 1 1/3
• 2 2/3
• 3 1/2
• 4 1/6

The number of arrangements of the letters of the word MOON is:

• 1 12
• 2 6
• 3 24
• 4 4

The value of 6P2 is:

• 1 15
• 2 12
• 3 36
• 4 30

The number of ways of choosing 2 people from 4 is:

• 1 8
• 2 6
• 3 12
• 4 4

A coin is tossed twice. The probability of two heads is:

• 1 1/4
• 2 1/8
• 3 1/2
• 4 3/4