Basic Probability Lesson and Questions

What does a probability of 1 mean?

• An event is unlikely

• An event is random

• An event is certain

• An event is impossible

If you roll a standard die, what is the probability of rolling a 3?

• 1/3

• 1/2

• 1/6

• 1/12

What is a trial in probability?

• A process with a random outcome

• A certain event

• A predictable event

• A mathematical equation

What is the probability of spinning a blue sector if there are 5 blue sectors and 16 total sectors?

• 11/16

• 1/16

• 1/6

• 5/16

If you have 3 green marbles, 7 yellow marbles, and 1 white marble, what is the probability of pulling out a yellow marble?

• 5/11

• 3/11

• 7/11

• 1/11