Unit 8 Review

The spinner shown is divided into 8 equal sections. The spinner is spun once. What is the probability that the arrow will land on blue AND even?

• 1/8
• 1/4
• 3/8
• 5/8

Order the following probability models from worst to best chance of winning.

• 1) Rolling a 7 on a number cube
  2) Rolling a 1 on a number cube
  3) Getting blue on the spinner
  4) Flipping tails on a quarter
• 1) Rolling a 1 on a number cube
  2) Rolling a 7 on a number cube
  3) Getting blue on the spinner
  4) Flipping tails on a quarter
• 1) Rolling a 7 on a number cube
  2) Rolling a 1 on a number cube
  3) Flipping tails on a quarter
  4) Getting blue on the spinner
• 1) Flipping tails on a quarter
  2) Rolling a 1 on a number cube
  3) Getting blue on the spinner
  4) Rolling a 7 on a number cube

A list of numbers is shown in the box below. What is the probability that a number selected at random from the list will be an odd number? Express your answer as a decimal. 

• 0.2
• 0.3
• 0.4
• 0.5

What is the probability of landing on an F?

• 1/8
• 1/4
• 3/8
• 5/8

A cereal company puts a colored ring in each box of cereal. There are 6 different ring colors. The colors of the rings in each of 50 cereal boxes are shown in the table. Based on the data, what is the probability that the next cereal box will contain red or a green ring?

• 1/6
• 2/5
• 3/10
• 4/11

Gina is playing a board game. The probability that Gina will score a point on her next turn is 1/2. Which statement describes the probability that Gina will score a point on her next turn?

• certain
• likely
• equally likely
• impossible

Based on a sample survey, a company claims that 80% of their customers are satisfied with their products. Out of 2,250 customers, you would expect ___________ customers to be satisfied.

• 1,200
• 1,400
• 1,600
• 1,800

Consider the following list of 10 high temperatures (⁰F) from the month of February.
35, 20, 41, 30, 19, 36, 28, 32, 39, 14
What is the probability of selecting a number that is below freezing (32⁰F)?

• 30%
• 40%
• 50%
• 60%

There are four flavors of ice pops in a box in the freezer: lime, grape, orange, and cherry. If a person chooses an ice pop from the box without looking, the probability of choosing lime is ¼, grape ⅙, and orange ⅓. Which describes the probability of choosing a cherry ice pop without looking.

• certain
• likely
• unlikely
• impossible

Betty collects stamps from different countries. She has 15 stamps from Spain, 21 stamps from France, 14 stamps from England, and 20 stamps from Italy. If she places these stamps in a bag, what is the probability she will randomly pick a stamp from France or England?

• ⅙
• ¼
• ⅓
• ½