Word List 3 Math

Certain

Describes an event that has a 100% chance of occurring

Complement

The opposite of an event

Compound Event

Consists of two or more simple events which occur
simultaneously or in succession when finding the probability

Equally likely

Describes an event that has a 50% chance of occurring

events

The outcomes or results of an experiment

Experimental Probability

Describes what actually happens (the results)
in a probability experiment

Frequency

The number of times that an outcome or event occurs in a
probability experiment

Impossible

Describes an event that has a 0% chance of occurring

Likely

Describes an event that has a 75% chance of occurring

Non-Uniform

A probability model in which all outcomes in an experiment
have different chances of occurring

Probability

The chance or likelihood that something will happen or occur

Probability Scale

The line that is used to describe the likelihood of an
event occurring using fractions, decimals, and percents

Random

Something that happens by chance and isn't easily able to be
predicted

Relative Frequency

The frequency of an event divided by all possible
trials

Sample space

The set of all possible outcomes of a probability
experiment that can be represented as a list, table, or a tree diagram

Simple Event

Describes a single outcome when finding the probability

Tree diagram

A tool that uses branches to display all possible outcomes
of events

Trials

Describes how many times you run a probability experiment

Uniform

A probability model in which all outcomes in the experiment have
the same chance of occurring

Unlikely

Describes an event that has a 25% chance of occurring