Unit 14 - Probability of Simple Events, 1st

Probability is ...

• the chance that some event will occur.

• a game that involves coins.

• a guarantee.

You spin the spinner once.

What is P(3)?

• 8%

• 25%

• 36%

• 2%

You flip a coin.

What is P(heads)?

• 50%

• 1%

• 25%

• 100%

You pick a card at random.

What is P(5)?

• 1/4

• 3/4

• 4/3

• 4

You roll a 6-sided die.

What is P(1)?

• 1/6

• 2/5

• 1/9

• 2/3

What is the probability of spinning the spinner and having it land on RED?

• ⅓
• ½
• ⅔
• ⅚

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

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