Beginning Probability

What is a trial in probability?

• An event with a single outcome

• A repetition of an experiment

• A possible result from an experiment

• A collection of all possible outcomes

What does 'equally likely to occur' mean?

• Outcomes are dependent on each other

• Outcomes occur randomly

• One outcome is more likely than the others

• Each outcome occurs with equal probability

What is theoretical probability?

• The expected probability based on knowledge of the situation

• The probability calculated from the outcomes of an experiment

• A combination of two or more outcomes

• A set of all possible outcomes

What is a sample space?

• An event with a single outcome

• A repetition of an experiment

• A possible result from an experiment

• The set of all possible outcomes

What are independent events?

• Events that do not affect each other

• A combination of two or more outcomes

• A set of all possible outcomes

• Events that depend on each other

What is a simulation in probability?

• An event with a single outcome

• A repetition of an experiment

• A set of all possible outcomes

• A way of collecting probability data using objects

Mattison’s piggy bank contains 6 dimes, 8 nickels, 12 pennies, and 3 quarters. What is the probability that a coin drawn at random is not a quarter?

• 3/29

• 23/29

• 12/29

• 26/29

Clarice is doing a probability experiment. She has a bag containing marbles of different colors. The probability of selecting each color of marble is given in the table. What is the probability that Clarice randomly selects a blue marble, replaces the marble, and then randomly selects a yellow?

• 5/128

• 1/4

• 7/16

• 1/32

At the beginning of class, Mr. VanderSchaaff asked all of his students to put up a green check. 21 of them put up a green check. He writes their names down on pieces of paper and puts them in a box. Mr. VanderSchaaff randomly selects a student for 10 bonus points, replaces the name, and repeats the process at the end of class. What is the probability that the same student will have his/her name drawn both times in the same day?

• 1/21

• 1/42

• 2/42

• 1/441

A block has 3 red sides, 2 green sides, 1 blue side, and 3 yellow sides. What is the probability that when the block is rolled it will land red side up?

• 1/5

• 1/6

• 2/5

• 1/3