Probability Review

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

A set of all possible outcomes is known as - 

• a list
• a complement
• a sample space
• an event

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

What is the probability of pulling a red marble
out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

• 1/7
• 7/20
• 7/10
• 3/10

What is the probability of getting an odd number when rolling a single 6 sided die?

• 1/6
• 2/6
• 3/5
• 3/6

How many total outfit options are represented?

• 12
• 22
• 3

3 Marbles are in a bag a blue, a white and a red marble.  The tree diagram for the situation is shown below, what is the probability of getting a red and a white marble in any order?

• 2/9
• 2/3
• 1/9
• 1/6

Which of the following situations is represented by this tree diagram?

• 3 shirt options, 6 pants options, and 12 shoe options
• 3 shirt options, 2 pants options, and 2 shoe options
• 2 shirt options, 3 pants options, and 1 shoe option

What is the probability of rolling a 5 on a standard die?

• 1/5
• 5/6
• 1/6
• 5

The cafeteria has 2 choices of salads, 3 choices of entrees, and 2 choices of beverages. How many meal combinations are available and why?

• 7 because 2 + 3 + 2
• 12 because 2(3)(2)