Probability of Simple Events Complements

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 he will NOT pull out a blue marker?

• 5/10
• 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

Jose randomly selected a block like the ones shown from a bag.  What is the probability that he will choose a cube with a number less than 5?

• ⅔
• ⅙
• ⅓
• ⅚

Probability is ...

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

Which event or complement has a probability of ¼?

• P(yellow)
• P(NOT blue or orange)
• P(yellow or green)
• P(NOT green)

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

Based on the chart, what is the experimental probability of pulling a green marble?

• 1/8

• 8/25

• 8/100

• 7/8

What is the probability that you choose blue? *simplify

5 green

6 yellow

8 blue

7 brown

• 8/26

• 4/13

• 8/25

• 1/3

Probability can be written as a 

• fraction
• decimal
• percent
• all of the above