Theoretical Probability

An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a 3.

• 1/6

• 3/6

• 1

• 1/2

Theoretical P(Green or Red)

• 2/6

• 1/5

• 2/5

• 1/5

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 3

• 1/10

• 3/10

• 30%

What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

• 1/7

• 7/20

• 7/10

• 3/10

What is the P( not purple) on this spinner?

• 2/5

• 1/5

• 4/5

• 3/5

What is the probability the spinner stops on yellow?

• .05

• 1/2

• 1/3

• 3/8

What is P(7)?

• 1/3

• 2/5

• 3/4

• 1/4

The spinner shown is spun once

P(1, 5, or 7)

• 1/8

• 3/8

• 4/8

• 2/8

What is the probability of flipping a coin and getting heads?

• 1/2

• 1/3

• 1/4

• Never, Tails never fails.

P(not A) = 
*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4