Probability Basics
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Probability Basics

Created by
@ChivalrousSard7112

Questions and Answers

The​ _______ for a procedure consists of all possible simple events or all outcomes that cannot be broken down any further.

sample space

The classical approach to probability requires that the outcomes are​ _______.

equally likely

As a procedure is repeated again and​ again, the relative frequency of an event tends to approach the actual probability. This is known as​ _______.

the law of large numbers

When using the​ _______ always be careful to avoid​ double-counting outcomes.

<p>addition rule</p> Signup and view all the answers

Events that are​ _______ cannot occur at the same time.

<p>disjoint</p> Signup and view all the answers

A​ _______ is any event combining two or more simple events.

<p>compound event</p> Signup and view all the answers

A picture of line segments branching out from one starting point illustrating the possible outcomes of a procedure is called a​ _______.

<p>tree diagram</p> Signup and view all the answers

Two events A and B are​ _______ if the occurrence of one does not affect the probability of the occurrence of the other.

<p>independent</p> Signup and view all the answers

Selections made with replacement are considered to be​ _______.

<p>independent</p> Signup and view all the answers

At least​ one is equivalent to​ _______.

<p>one or more</p> Signup and view all the answers

The complement of​ 'at least​ one' is​ _______.

<p>none</p> Signup and view all the answers

A​ _______ probability of an event is a probability obtained with knowledge that some other event has already occurred.

<p>conditional</p> Signup and view all the answers

Study Notes

Sample Space

  • Represents all possible simple events or outcomes of a procedure that cannot be broken down further.

Classical Probability

  • Classical approach requires that all outcomes are equally likely.

Law of Large Numbers

  • As a procedure is repeated, the relative frequency of an event approaches its actual probability.

Addition Rule

  • Caution is needed to avoid double-counting outcomes when using this rule.

Disjoint Events

  • Events that are disjoint cannot occur simultaneously.

Compound Event

  • Defined as any event formed by combining two or more simple events.

Tree Diagram

  • A visual representation showing branching line segments from a starting point, illustrating possible outcomes of a procedure.

Independent Events

  • Two events A and B are independent if the occurrence of one does not affect the probability of the other.

Selections with Replacement

  • Such selections are considered independent since the outcome of one selection does not impact the next.

"At Least One"

  • This phrase is equivalent to "one or more," indicating that the event can happen once or multiple times.

Complement of "At Least One"

  • The complement is "none," signifying that the event does not occur at all.

Conditional Probability

  • A conditional probability is assessed with the knowledge that another event has already occurred.

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Description

Test your understanding of basic probability concepts with this quiz. Covering terms like sample space and equally likely outcomes, it's a concise way to solidify your knowledge. Perfect for students learning fundamentals of probability theory.

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