Elementary Statistics Quiz

What is a probability experiment?

• A process with guaranteed outcomes.

• A random process without defined results.

• A chance process leading to well-defined outcomes.

• A situation where outcomes depend on skill.

What is the sample space in a probability experiment?

• A single outcome from the experiment.

• The set of all possible outcomes.

• A random subset of outcomes.

• A collection of events.

How is an event different from an outcome?

• An event always has one outcome, while an outcome is broader.

• An event refers to failures, and an outcome refers to successes.

• An event can consist of multiple outcomes, but an outcome is a single trial result.

• There is no difference.

What is the range of probability values for an event?

• 0 to infinity.

• -1 to 1.

• 0 to 1 inclusive.

• 0 to 100

Tags

CCSS.7.SP.C.5

If an event is certain to occur, what is its probability?

• 0

• 1

• 0.5

• Undefined

Tags

CCSS.7.SP.C.5

If an event cannot happen, what is its probability?

• 1

• 0.5

• Undefined

• 0

Tags

CCSS.7.SP.C.5

What is the sum of probabilities for all outcomes in a sample space?

• 100

• 0

• Undefined

• 1

If the probability of rain tomorrow is 0.20, what is the probability it won’t rain?

• 0.80

• 0.50

• 1.00

• 0.10

Tags

CCSS.7.SP.C.5

If a die is rolled, what is the probability of getting a number greater than 6?

• 1/2

• 1/6

• 0

• 1

Tags

CCSS.7.SP.C.5

Which of the following pairs of events are mutually exclusive?

• Rolling a die: Getting a 2 and getting an even number.

• Drawing a card: Getting a king and getting a spade.

• Selecting a student: Being a junior and being a senior.

• Selecting a course: It is a mathematics course and an algebra course.

Tags

CCSS.HSS.CP.A.5