HW: Counting Techniques

How many ways can a stylist arrange 5 of 8 vases from left to right in a store display?

• 672
• 40
• 6720

How many identification code are possible by using 3 letters if no letter may be repeated?

• 15, 600
• 75
• 78

What is the value of 5!

• 25
• 15
• 120
• 720

Tags

CCSS.7.NS.A.2

What is the value of ₅P₂?

• 60
• 10
• 20
• 15

Tags

CCSS.HSS.CP.B.9

Is the order of arrangement important?
A group of nine people consists of three girls, five boys and a man. The nine people are seated randomly in a row. Find number of ways if the three girls are seated together.

• Yes
• No

Tags

CCSS.HSS.CP.B.9

There are 5 airplanes ready to depart.  Runway A and runway D are available.  How many ways can 2 planes be assigned to runways without using the same runway?

• 7
• 20
• 25

How many ways can you listen to 3 songs from a CD that has 12 selections?

• 1320
• 33
• 36

Picking two paint colors for your room.

• Permutation

• Combination

• Neither

Tags

CCSS.HSS.CP.B.9

Picking 5 cards from a deck of cards.

• Permutation
• Combination
• Neither

How many ways can a club select a president, vice president, and a secretary from a group of 5 people?

• 12
• 60
• 15