Intro Probability

A probability near 1 is _______.

• never going to happen 

• very likely to happen

• probably never going to happen

•  equally likely to happen

What is the probability of rolling a cube and having land as an odd number?

• 3/4

• 1/3

• 1/2

• 2/5

What is the probability of spinning red?

• 0

• 5/12

• 1/2

• 3/4

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without looking, what is the probability she will NOT pull out a blue marker?

• 1/2

• 1/3

• 4/15

• 2/3

A small bag of jelly beans contains 2 lemons, 4 cherry, 1 lime, and 3 blueberry jelly beans. If Jessica chooses a jellybean without looking, what is the probability it will be cherry or blueberry?

• 3/10

• 7/10

• 1/2

• 1/4

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
How many total outcomes are there?  

• 6

• 12

• 24

• 36

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?

• Independent

• Dependent

Probability can be between what two numbers?

• 10 and 20

• 0 and 100

• 0 and 1

• All Numbers are possible

Is it more likely or less likely to pull a red marble than a green marble?

• more likely

• less likely

Is the event INDEPENDENT or DEPENDENT?

Amy plays card games. She picks a card at random. Then without putting the first card back, she picks a second card at random.

• Independent

• Dependent