23 terms

Probability

The likelihood of something happening.

Fundamental counting principle

If one event has m possible outcomes and a second independent event has n possible outcomes, then there are m x n total possible outcomes for the two events together.

Permutation

Selection of a group in which order is important.

Combination

Grouping of items in which order dies not matter.

Factorials

The result of multiplying a sequence of descending natural numbers down to 1

4!=(such as 4 × 3 × 2 × 1=24)

4!=(such as 4 × 3 × 2 × 1=24)

Equally likely to happen

The outcomes of an experiment are equally likely to occur.

Outcomes

An outcome is a possible result of an experiment.

Sample space

Set of all possible outcomes or results of that experiment.

Event

event is a set of outcomes of an experiment

Favorable outcome

Outcomes in specified event.

Theoretical probability

The ratio of the number of favorable outcomes to the total number of outcomes.

Complement

The set of all outcomes in the sample space that are not E- event.

Geometric probability

The form of theoretical probability by a ratio of lengths, areas, or volumes.

Experiment

Use to estimate the probability of an event.

Trial

Each repetition of an experiment is a trail.

Experimental probability

The ratio of the number of times that the event occurs.

Independent events

When the occurrence of one event doesn't affect the probability of the other.

Dependent events

When the occurrence of one event affects the probability of the other.

Conditional probability

Process to find dependent events.

P(B|A)- probability of B given that A has occurred.

P(B|A)- probability of B given that A has occurred.

Simple events

Event that describes a single outcome.

Compound event

Event made up by two or more simple events.

Mutually exclusive events

Events that cannot both occur in the same trail of an experiment.

Inclusive events

Events that have one or more outcomes in common.