Bell Work1. You pick a marble from a bucket of marbles 25 times. Each time you record its color and replace it. Find the experimental probability of selecting either a blue or green marble.

2. If there are 100 marbles in the bucket, then how many would you predict are red?

RED YELLOW GREEN BLUE6 4 9 6

5/3

24 red marbles

Tree Diagrams, Tables and Organized Lists

How many different ways can a red, blue and green marble be pulled from a bag?

Try making an organized list

(R,B,G)(R,G, B)(G, R, B)(G, B, R)(B, G, R)(B, R, G)

Core Lesson

1

2

3

4

5

6

What is the probability of getting green, blue and red in

that order? P(g, b, r)=

Tree Diagram

You are arranging flowers for a party. You can choose a small vase or a large vase, and you can put either roses, carnations, or lilies in a vase. Complete the tree diagram. Then find all the possible ways that the flowers can be arranged.

1. Small2. Carnations3. Lilies4. Roses5. Carnations

EXAMPLE 1 You Try:You are ordering a fruit smoothie. You have your choice of a small, medium or large smoothies. And you can include one of the following fruits: strawberries, bananas or oranges. How many different choices of smoothies do you have?

STEP 1 STEP 2List the sizes. List the fruit

each size.choices for

STEP 3List theoutcomes

There are 9 different choices of smoothies.

GUIDED PRACTICEYou TryPopcorn at a movie theater comes in regular, large, and jumbo sizes, and it comes either plain or buttered. How many choices of popcorn do you have? Make a tree diagram to solve the problem.

You have 6 different choices.

HH HT

TH TT

H T

H

T

Making a Table

You flip a coin twice. Make a table to display your outcome.

You try:You have three shirts and four pairs of pants to choose from. Make a table to display the different combinations.

5 ice cream flavors x 4 toppings= 20

20 different ways to order a sundae at Scott’s Sundae Shop.

You Try:You order an ice cream sundae at Scott’s Sundae Shop. You have 5 ice cream flavors and 4 toppings to choose from. How many different ways could you order a sundae?

Practice:Tree Diagram

Worksheet