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# Counting Events

## And' means multiply

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Counting Events

List and calculate all possible outcomes by using tree diagrams
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## Multiplication Rule

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## Multiplication Rule

by Marion Van Hoose //
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## Counting Events

List and calculate all possible outcomes by using tree diagrams
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## Counting Events

Find out how to calculate the number of outcomes of an event by tree diagram and mathematically given different choices.
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• PLIX

## Counting Events: Flipping Unfair Coins

Counting Events Interactive
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• Video

## Probability Part 3

by CK-12 //basic
Learn how to write out all the possible outcomes of a tree diagram by hand and how to calculate the probability of an outcome.
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• Real World Application

## Lightning Strikes

by CK-12 //basic
Find out your chances of holding the world record for lightning strikes.
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• Study Guide

## Basic Probability

by Danielle Pintz //basic
covers the two types of probability, sample spaces and events, union, intersection, conditional probability, and the complement of an event
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• Study Guide

## Theoretical-and-Experimental-Probability

by Assaf //basic
covers the two types of probability, sample spaces and events, union, intersection, conditional probability, and the complement of an event
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• Study Guide

## Basic Probability Terminology

by Carlos Villarreal //basic
covers the two types of probability, sample spaces and events, union, intersection, conditional probability, and the complement of an event
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