Probability Review 2

Use the counting principle to determine how many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes.

• 15

• 40

• 80

• 10

What is the probability that you will get plain crust with ham on your pizza?

• 1/8

• 1/₂

• 1/₁₀

• 2/₁₀

If the spinner above is spun and the coin is flipped, create a tree diagram to represent the probability of getting a blue AND a heads. Which answer represents the probability?

• 1/6

• 4/12

• 1/4

• 1/8

Which method of finding the total outcomes of an event allows you to see all possible outcomes?

• fundamental counting principle
• experimental probability
• theoretical probability
• tree diagram

Use the spinner to determine the probability of the given event.

Find P'(green)

Use the spinner to determine the probability of the given event.

Find P(evens)

A bag contains 2 blue marbles, 3 black marbles, and 5 red marbles. Mrs. Grow picks one marble, replaces it, then picks another. What is the probability of them both being blue?
P(blue and blue) 

• 1/25
• 1/5
• 1/20
• 2/5

On a 6-sided die, which is more likely?

• Rolling an odd number
• Rolling an even number
• They are both equally likely.

In a box there are 3 red pens, 2 green pens, and 1 blue pen. What is the probability of picking a red pen, replacing it, and then picking a green pen?

• 1/2
• 4/11
• 1/6
• 2/3

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5