# Probability, Events and Outcomes - PowerPoint PPT Presentation

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SWBAT: Define probability, event & outcomes Determine the probability of a “favorable” even occurring. Probability, Events and Outcomes . Yo yo yo welcome back!!!!!!!! Happy NEW YEAR!. An experiment is a situation involving chance or probability that leads to results called outcomes.

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Probability, Events and Outcomes

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#### Presentation Transcript

• SWBAT:

• Define probability, event& outcomes

• Determine the probability of a “favorable” even occurring

## Probability, Events and Outcomes

Yoyoyo welcome back!!!!!!!! Happy NEW YEAR!

### An experiment is a situation involving chance or probability that leads to results called outcomes.

Ex: …. In the problem above, the experiment is spinning the spinner. Do you agree?!

### An outcome is the result of a single trial of an experiment.

The possible outcomes are landing on orange, blue, green or red.

### An event is one or more outcomes of an experiment.

One event of this experiment is landing on blue.

### Probability is the measure of how likely an event is.

The probability of landing on blue is one-fourth.

### Blue blueblueis my favorite color (presently).

To land on BLUE would be a “favorable” outcome for me.

### Yes, write this down too!!

• Probability Of An Event P(A) =

### Probability is the measure of how likely an event is.

What’s the probability of landing on yellow?

Red?

### Imagine…

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• What are the possible outcomes?....

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• P(red) =

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• P(green)  =

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• P(blue)  =

• A glass jar contains 6 red, 5 green, 8 blue and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?

• P(yellow)  =

### Fundamental Counting Principle

How many different types of sandwiches can we make?

Choices:

WheatRoast beefAmerican

SourdoughTurkeyCheddar

HamSwiss

### Fundamental Counting Principle

• How many different phone numbers

can exist with a 617 area code before

a new area code needs to be created?

### Exit Ticket 

• 1. Which of the following is an experiment?

• Tossing a coin.c. Choosing a marble from a jar.

• Rolling a single 6-sided died. All of these

• 2. Which of the following is an outcome?

a.Rolling a pair of dicec. Choosing two marbles from a jar

• Landing on red

• 3. Which of the following experiments does NOT have equally likely outcomes?

• Choose a # at random from 1-7 c. Choose a letter at random from the word SCHOOL

• Toss a coin d. None of these

• 4. What is the probability of choosing a vowel from the alphabet?

• 5. A number from 1 -11 is chosen at random. What is the probability of choosing an odd number?