Vocabulary

Vocabulary

Basic Probability

Experimental Probability

Theoretical Probability

Independent Events and Mutually Exclusive Events

100

An activity in which results are observed.

What is an experiment?

100

There are 3 red, 4 green, 2 purple, and 3 orange jelly beans in a bag. What is the probability of picking a jelly bean that is not purple?

What is 5/6?

100

A number cube was rolled 150 times. It landed on 2 21 times. What is the experimental probability of landing on a 2?

What is 21/150 (.14)?

100

The probability of rolling a 3 on a fair number cube.

What is 1/6?

100

In an experiment with a coin and fair die, the probability of landing on heads and 6.

What is 1/12 (.083)?

200

Each observation in an experiment.

What is a trial?

200

The following marbles are in a bag: 20 red, 25 blue, 15 green, 10 white, and 30 black marbles. What is the probability of picking a red marble?

What is 1/5?

200

The class president made 75 copies of the flyer advertising the school play. It was found that 6 of the copies were defective. What is the probability that a flyer will be printed properly?

What is 6/75 (0.08)?

200

The probability of picking a card with hearts in a deck of cards.

What is 1/4?

200

In an experiment involving a coin and fair die, the probability of landing on tails and an even number.

What is 1/4 (0.25)?

300

The result of a trial.

What is an outcome?

300

The following marbles are in a bag: 20 red, 25 blue, 15 green, 10 white, and 30 black marbles. What is the probability of picking a black marble?

What is 3/10?

300

The class president made 75 copies of the flyer advertising the school play. It was found that 6 of the copies were defective.
If 400 more flyers need to be printed, predict how many will be defective.

What is 32 flyers?

300

Rolling two number cubes, the probability of getting a sum of 10 or more.

What is 1/6 (.167)?

300

Playing Monopoly with two dice, you will "go to jail" if you roll a doubles or total of three on your next roll. The probability that you will go to jail on your next roll.

What is 8/36, 2/9, .222?

400

The set of all possible outcomes in an experiment.

What is the sample space.

400

Mrs. Silverstein has 14 boys and 11 girls in her class. She must select one student at random to serve as the class moderator. What is the probability that she will choose a boy? What is the probability that she will choose a girl?

What is 14/25 (.56) and 11/25 (.44)?

400

If a coin is tossed 75 times and it lands on heads 36 times, what is the experimental probability of it landing on tails?

What is 52%?

400

If Sam guessed the day that someone was born in November, what is the theoretical probability that he guessed correctly?

What is 1/30 (.03)?

400

Give the sample space for 2 dice being rolled.

What is (36 outcomes listed)?

500

The probability of zero means that the event is __________.

What is impossible?

500

Based on world statistics, the probability of identical twins is
4/1000, while the probability of fraternal twins is 23/1000.
What is the probability that a person chosen at random from the world will be a twin?

What is 27/1000 (0.027)?

500

The likelihood of an event is estimated by repeating an experiment many times and observing the number of times the event happens.

What is experimental probability?

500

Used to estimate probability by making certain assumptions about an experiment.

What is theoretical probability?

500

When two events can not occur in the same trial of an experiment.

What is mutually exclusive events?