Probability Review 2

What is the sample space when rolling a regular number cube?

• 1

• 2, 4, 6

• 1, 2, 3, 4, 5, 6

• 6

What is the probability of landing on the color blue on the spinner?

• 3/3
• 1

• 3/12 or 1/4
• 3/9 or 1/3

What is the probability of the spinner landing on red?

• 5/12
• 7/12

• 5/5
• 5/10 or 1/2

A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/10

• 1/9

Which of the following best describes the likelihood of the spinner landing on a number less than 6?

• impossible

• unlikely

• equally likely

• likely

• certain

A deli offers the types of bread and sandwiches show in the table. How many possible outcomes are there?

A coin is flipped three times. What is the probability that the coin will land tails up once and heads up twice, if the order doesn't matter?

(Hint: Draw a tree diagram to help you.)

Probability ranges from 0 (impossible) to 1 (certain).

• true

• false

George is conducting a survey to determine if corn dogs should be sold in the school cafeteria. Which sampling method will give him the best results?

• Interview randomly selected vegetarian students

• interview randomly selected students at waffle house

• interview randomly selected students who bring a lunch box

• interview randomly selected students who eat lunch in the cafeteria

 A jar contains marbles of different colors. The probability of drawing a red marble at random is 2/10.

What is the probability and likelihood that the marble drawn is NOT red?