PW - 1.1 Randomness and Probability

Probability is ...

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

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

• ⅓
• ½
• ⅔
• ⅚

Probability can be written as a 

• fraction
• decimal
• percent
• all of the above

What is the theoretical probability of picking a vowel from the letters A, B, C, D, and E?

• 2/5
• 2/3
• 1/5
• 25%

Find the theoretical probability of landing on black if you spin the spinner.

• 0%
• 100%
• 50%
• 25%

Find the experimental probability:
Roll dice:  1, 3, 3, 4, 4
P(1) = 

• 3/5
• 1/6
• 2/5
• 1/5

A measurement of the likelihood of an event or events occurring on a scale of 0 to 1 is called - 

• data
• luck
• probability
• trials

What is the probability of selecting a cherry piece?

• 3/12
• 12/12
• 5/12
• 50%

the result of an action or event

• mutually exclusive events
• outcome
• population
• probability 

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4