Probability Sample Space

Presentation

•

Mathematics

•

7th Grade

•

Hard

Joseph Anderson

FREE Resource

7 Slides • 9 Questions

Sample Spaces, Tree Diagrams & The Counting Principle

What is a sample space?

The collection of ALL possible outcomes in an "experiment" or "event"
Is used to find the probability of an event occuring.

Multiple Choice

How many outcomes are there for flipping a coin?

Multiple Choice

How many outcomes are there for flipping 2 coins?

How many outcomes are there?

Heads, Heads
Heads, Tails
Tails, Heads
Tails, Tails
There are a total of 4 outcomes when flipping 2 coins.

Multiple Choice

What is the probability of getting 2 tails?

1/4

2/4

3/4

4/4

Multiple Choice

What is the probability of getting a heads AND a tails?

1/4

2/4

3/4

4/4

How many outcomes for this spinner?

Fill in the Blanks

What is the probability of spinning two of the same color?

Type answer...

Fill in the Blanks

What is the probability of spinning a red AND a blue?

Tree Diagram

Can be used to show a sample space
Each "branch" of the diagram represents one possible outcome

Multiple Choice

What is the probability of making both shots?

1/4

2/4

3/4

4/4

The Counting Principle

easier way to find a sample space
helpful for a large number of outcomes
multiply the number of possible outcomes for EACH "event"

You have 4 different pairs of socks and 6 different pairs of sneakers. How many different combinations of socks and shoes do you have?

4 socks
6 sneakers
4x6=24 combinations

Fill in the Blanks

At Joey's Italian Restaurant, there are 6 choices for appetizers and 8 choices for entrees. How many different appetizer and entree choices are there?

Type answer...

Fill in the Blanks

The Dough Hut doughnut shop has 2 different types of doughnuts, 5 different types of icing and 4 different toppings. If each doughnut has one type of icing and one type of topping on it, how many doughnut varieties are there?

Type answer...

Sample Spaces, Tree Diagrams & The Counting Principle

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