Probability Terms PreQuiz

Sure to happen; the opposite of impossible

• equally likely

• random

• certain

• possible

To have exactly the same chance of occurring

• equally likely

• random

• certain

• possible

Describes a situation in which every possible outcome has an equal chance

• equally likely

• random

• certain

• possible

The ‘opposite’ event

• event

• outcome

• sample space

• complementary event

A result involving one or more outcomes

• event

• outcome

• sample space

• complementary event

A single result from a situation or experiment

• event

• outcome

• sample space

• complementary event

The set of all possible outcomes of a situation or experiment

• event

• outcome

• sample space

• complementary event

A 1 in four chance of occurring is the same as a 25% chance of occurring.

• TRUE

• FALSE

Which number represents a event being unlikely to occur?

• 0

• 0.25

• 0.5

• 1

Which number represents a event being equally linkely to occur?

• 0

• 0.25

• 0.5

• 1