Counting outcomes & probability

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

Each question on a five-question multiple-choice quiz has answer choices labeled A, B, C, and D. How many different ways can a student answer the five questions?

• 20

• 64

• 256

• 1024

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11
• 5/6
• 1/3
• 5

A menu has 6 different sandwiches, 3 choices of potato chips, 3 types of salad and 5 different beverages. How many different lunch combinations are possible assuming that one item is chosen from each category?

• 30

• 17

• 90

• 270

Melissa rolled a number cube that has sides labeled 1 to 6. What is the probability that she rolled a 2 or a 3?

• 1/6

• 1/3

• 1/2

• 3/4

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
How many total outcomes are there?  

• 6
• 12
• 24
• 36

A lock has four dials. On each dial are the digits 0 to 9. How many possible combinations are there if you cannot reuse a number?

• 40
• 5040
• 3024

• 10,000

The probability of picking a quarter from a jar of coins is 0.125. If Daniel has 250 coins in the jar, about how many quarters are in the jar?

• 25

• 30

• 35

• 40

Find the probability of rolling a 7 on a single die.

• 1/6

• 7/6

• 0

• 7/7

What is the probability of randomly selecting a striped marble, replacing it, and then selecting a solid marble?

• 2/5

• 6/25

• 3/5

• 11/50