Probability Area Models

What is the probability of rolling 2 dice and they add to either 2 or 5?

Draw an area model to answer the question.

What is the probability of rolling a 5 and flipping tails?

How many total outcomes are there when using the 2 spinners?

Draw an area model to answer the question.

What is the probability of spinning a 2A

P (even number and B) =

Draw an area model to answer the question.

P (7A or 3C) =

Draw an area model to answer the question.

What is the probability of pineapple/red?

P (pineapple and red or green)

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when a TV is chosen, it will be defective?

• spin a spinner with 50 equal sections

• draw from a bag containing 3 red marbles and 2 green marbles

• flip a coin

• roll a die

The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?

• rolling a six-sided number cube 6 times

• rolling a six-sided number cube 20 times

• spinning a spinner with 4 equal sized sections 6 times

• choosing 6 marbles in a bag of 20 different colored marbles