Probabilities of Simple Events

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

P(not A) =

*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

There are 15 girls and 15 boys in 8th period. If Terry randomly selects a member of 8th period, what is the probability that she will select a boy?

• 15/15

• 1/2

• 15/40

• 8/15

What is the probability of spinning a 2 on the spinner?

• 1/2

• 1/3

• 1/8

• 1/4

What is the probability the spinner stops on yellow?

• .05

• 50%

• 25%

• 3/8

What is the probability of the spin stopping on yellow?

• 1/4

• .25

• 50%

• 75%

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%