Outcome Probability

What is the probability of spinning a number less than 5? 

• 16 2/3%

• 33 1/3 %

• 66 2/3%

• 83 1/3%

What is the probability of spinning a 2, then spinning again and getting a 4?

• 1/5

• 1/10

• 1/25

• 2/5

If an event is sure to happen, then the probability is _____ .

• 3/4

• 1/2

• 0

• 1

Probability is ...

• the chance that some event will occur.

• a game that involves coins.

• a guarantee.

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

• 3/5

• 1/6

• 2/5

• 1/5

If you flip a quarter then roll a die, how many possible outcomes are there?
3 Minutes, draw a tree diagram if you want.

• 12

• 36

• 24

• 18

If a coin is tossed 3 times, how many possible outcomes are in the sample space?

• 6

• 8

• 3

• It depends

P(not A) = 
*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

P(C or E) = 
*Remember to simplify.*

• 2/8

• 1/4

• 4/8

• 1/2