Sets and Probability

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

A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, P(red or black)

• 8/15

• 15/225

• 5/15

• 3/15

A number is randomly selected from 0-10. What is the probability the number selected is greater than 5?

• 1/2

• 3/5

• 2/5

• 5/11

What is the probability of spinning an even number? 

• 16 2/3%

• 33 1/3%

• 50%

• 75%

What is the probability of the spinner landing on red?

• 5/12

• 1/5

• 5/5

• 3/5

Which event has a probability of zero?

• Rolling a “7” on a dice

• Rolling a “5” on a dice

• Tossing a coin and landing on “tails”

• Tossing a coin and landing on “heads”

What is probability?

• It is a number that describes the relationship between two sets of data.

• It is the number that describes the likelihood that an event will occur. 

• It is the number that describes the percent of change.

• It is the number that describes the distance around a figure.

What is the highlighted region?

• A⋃B

• A⋂B

• A⊆B

• A⋁B

Which of the following is an outcome?

• Choosing a marble from a bag

• Tossing a coin twice

• Getting a head

• Rolling a die

The likelihood of an event happening is _________.

• percentage

• probability

• parallel

• predictions