Probability Basics

A die is rolled once.  What is the probability of rolling a 5? Your answer should be a fraction in simplest form.

• 1/6

• 1/3

• 2/5

• 5/6

If a stone is dropped at random on the arrangement of tiles shown, what is the probability the stone lands on a black tile?

• 5/9

• 4/9

• 1/2

• 1/9

A bag has 3 apples and 8 oranges. What is the probability of drawing an orange at random?

• 8/11

• 3/11

• 24/121

• 1/6

Probability is ...

• the chance that some event will occur.

• a game that involves coins.

• a guarantee.

Probability can be written as ...

• a fraction

• a decimal

• a percent

• all of the above

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

• 1/2

• 1/3

• 1/4

• Never, Tails never fails.

Experimental Probability is:

• What Will happen 

• What actually happens

• What should happen

• What I think Happens

Theoretical Probability is?

• What Should happen

• What does happen

• What Will Happen

• What I want to Happen

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%

• 70%

• 100%

• 0%

A die is rolled once.  What is the probability of rolling a 5 or a 6? Your answer should be a fraction in simplest form.

• 5/6

• 2/6

• 1/3

• 1/5