Chapter 6 ReviewJeopardy Tomorrow

Test is Friday

True or False

• Experimental probability is based on knowing all the equally likely outcomes of an experiment.

• FALSE – theoretical probability is when you figure out all of the possible outcomes.

Matching

The type of probability that is is based on knowing all the equally likely outcomes of an experiment.

A. ExperimentalB. Theoretical

Fill in the blank!

• ____________ probability is based on knowing all the equally likely outcomes of an experiment.

• THEORETICAL probability is when you figure out all of the possible outcomes.

Probabilities are written as fractions

What is the probability of getting a 5 if you role a fair dice?

What is the probability of getting a 4 if you role a fair dice?

What is the probability of getting a 1 if you role a fair dice?

ODDS IN FAVORWhat are the chances of something happening

What are the odds in favor of stopping on an even number?

ODDS IN FAVORWhat are the chances of something happening

What are the odds in favor of stopping on a number less than 4?

ODDS AGAINST

What are the chances of something NOT happening?

What are the odds against stopping on a number greater than 5?

ODDS AGAINST

What are the odds against of stopping on a multiple of 3?

Draw a Tree Diagram

How many outcomes are possible if someone rolls a die and then spins the spinner.

Draw a Tree Diagram For lunch you have a choice of sandwich,

salad, or hot lunch. For sides you can get a vegetable, a fruit, or cookies. Drinks are milk or juice. Give the total number of outcomes for lunch. Use a tree diagram.

Transportation Cost

Airplane $350

Bus $150

Train $225

Hotel Van $60

Taxi $40

BONUS: The cost of each type of transportation is given in the table below. Determine the cost for each outcome.

A travel agent plans trips for tourists from Chicago to Miami. He gives them three ways to get from town to town: airplane, bus, train. Once the tourists arrive, there are two ways to get to the hotel: hotel van or taxi. Draw a tree diagram to illustrate the possible choices for the tourists.

Counting Principles

How many lunches can you choose from 3 different drinks and 4 different sandwiches?

Counting Principle Practice

• When shopping you can pick from 5 pieces of meat, 3 starches, and 7 veggies for dinner. How many dinners can you make?

• When making an ice cream Sunday you can choose from 10 different flavors and 20 different toppings. How many different Sundays can you make?

Counting Principle

How many outfits are possible from a pair of jean or khaki shorts and a choice of yellow, white, or blue shirt?

Criss-Cross Multiply:Who can do a problem on the board and explain it to the class?

= = =

= = =

The trick to word problems

The top has to match the top and the bottom has to match the bottom

= =

=

The first sentence usually makes the first fraction!

Proportion Problem

If Mike is absent 1 out of every 15 days of school, how many days is he absent during a school year of 180 days?

X = 12

=

Proportion Problem

If a baseball player averages 2 hits for every 7 times he bats how many hits will he have when he bats 28 times?

X = 8

=

Probability continued …

Totsakan enlarged the size of a photo to a height of 18 in. What is the new width if it was originally 2 in tall and 1 in wide?

Probability continued …

• A triangle is 20 in tall and 5 in wide. If it is reduced to a width of 1 in then how tall will it be?

• Chart to Proportion Equation

A ratio is a comparison of two numbers or measures using division.

A ratio can be written three ways:3:5 3/5 3 to 5

BACK

Ratio Wording

• At the carnival the ratio of rides to games was 9:8. For every _____ games there are _____ rides.

• In a bag of candy for every 3 chocolate pieces there are 7 sugar pieces. What is the ratio of chocolate pieces to sugar pieces?

Unit RateTo find the Unit Rate, you would find the cost or amount for 1. YOU NEED TO TURN IT INO A CRISS-CROSS MULTIPLY PROBLEM.

“How much for just 1?”BACK

Unit Rate Problems

• An industrial machine is able to make 9 pens in 3 seconds. What is the rate made per second?

• It took a pet store 10 weeks to sell 80 cats. What is the rate sold per week?

Comparing Using Unit Rate

A supermarket had bags of red grapes for $27.09 for 7. The also had bags of green grapes priced at $14.96 for 4. Which type of grape is most expensive?

Writing Equations to Represent Unit Rate

Every cup is 8 ounces. Write an equation to express the total number of ounces (Z) in (y) cups.

Every quarter is 5 nickels. Write an equation to express the total number of nickels (Z) in (y) quarters.