###
permutation

an arrangement of items or events in which order is important.

###
independent events

events for which the outcome of one even does not affect the probability of the other.

###
dependent events

events for which the outcome of the first event affects the probability of the second event.

###
combination

an arrangement of items or events in which the order does not matter.

###
factorial

the product of all whole numbers except zero that are less or equal to the number.

###
event

an outcome or set of outcomes of an experiment or situation.

###
probability

a number from 0 to 1 (or 0% to 100%) that describes how likely an event is to occur.

###
trial

in probability, a single repetition or observation of an experiment.

###
outcome

a possible result of a probability experiment.

###
experiment

in probability, an activity based on chance, such as tossing a coin.

###
complement

the set of all outcomes that are not the desired event.

###
experimental probability

the ratio of the number of times an event occurs to the total number of trials, or times that the activity is performed.

###
sample space

all possible outcomes of an experiment.

###
Fundamental Counting Principle

If one event has "m" possible outcomes and a second event has "n" possible outcomes after the first even has occurred, then there are "m*n" total possible outcomes for the two events.

###
theoretical probability

the ratio of the number of equally likely outcomes in an event to the total number of possible outcomes.

###
prediction

something you can reasonably expect to happen in the future.

###
fair

when all outcomes of an experiment are equally likely.

###
equally likely

outcomes that have the same probability.

###
simple event

an event consisting of only one outcome.

###
compound event

an even made up of two or more simple events.

### Please allow access to your computer’s microphone to use Voice Recording.

## We can’t access your microphone!

### Click the icon above to update your browser permissions and try again

Example:

### Reload the page to try again!

Reload

## Press Cmd-0 to reset your zoom

## Press Ctrl-0 to reset your zoom

### It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

## Your microphone is muted

### For help fixing this issue, see this FAQ.