Probability Concepts Quiz

What is the term for the set of all possible outcomes in a probability experiment?

• Probability

• Event

• Sample Space

• Outcome

If you roll a six-sided die, what is the probability of rolling a number greater than 4?

• 1/3

• 1/6

• 1/2

• 2/3

In the word 'probable', what is the probability of randomly selecting a vowel?

• 1/2

• 5/8

• 3/8

• 1/4

When rolling two dice, what is the probability that the difference between the numbers is 4?

• 1/6

• 1/9

• 1/12

• 1/36

What is the term for each repetition of an experiment in experimental probability?

• Sample

• Event

• Trial

• Outcome

If an event occurs 14 times out of 50 trials, what is the experimental probability of the event?

• 7/25

• 28/50

• 14/50

• 1/4

Which of the following pairs of events are mutually exclusive?

• Drawing a king and a queen from a deck of cards

• Rolling a 3 and a 4 on a single die

• Rolling an even number and a 6 on a die

• Drawing a red card and a heart from a deck

If a box contains 8 squeaky toys, 5 plush toys, and 2 bones, what is the probability of selecting a plush toy or a bone?

• 2/5

• 1/3

• 7/15

• 1/2

In a collection of 900 ice cream pints, 200 are sugarless, 500 are vanilla, and 50 are sugarless vanilla. What is the probability of selecting a sugarless or vanilla pint?

• 7/10

• 5/9

• 2/3

• 13/18

What must be done when calculating the probability of non-mutually exclusive events?

• Divide the probability of one event by the other

• Subtract the probability of both events occurring

• Multiply the probabilities of each event

• Add the probabilities of each event