Probability

Vocabulary

100

The chance that some outcome will occur

Probability 

200

One outcome or a collection of outcomes

Simple Event 

300

Possible result to an event in a probability problem

Outcome

400

What should happen in a probability experiment? 

Theoretical Probability 

500

What actually occurs during such experiment

Experimental Probability 

Simple Events

100

When rolling a number cube, what is the probability of rolling the number 2?

1/6

200

When rolling a number cube, what is the probability of rolling a 3 and 4?

2/6 or 1/3

300

When spinning a spinner out of 10 spaces, what is the chance the spinner lands of an odd number?

5/10 or 1/2

400

There are 3 blue, 4 red, and 6 green marbles. What is the probability of not picking a green marble?

7/13

500

With 10 cards, what is the probability of selecting a card that is a multiple of 3?

3/10

Compound Events

100

What are the total number of outcomes from choosing between a red, yellow, or blue shirt. Selecting a pair of brown or black pants and brown or white shoes. 

12

200

Picking a number 1 through 5 and choosing the color purple, pink, or red

15

300

Selecting between ham, turkey, roast beef on white, rye, wheat, with cheddar, mozzarella, or provolone cheese topped with mayo or mustard 

54

400

Tosses two number cubes. What is the probability of rolling a pair of double sixes?

1/36

500

Rolling a number cube, tosses a coin, and chooses a card marked A or B. What is the probability of rolling a 3, flipping tails, and choosing card B?

3/24 or 1/8 

Permutations

100

P(8,2)

56

200

P(10,3)

720

300

P(5,4)

120

400

A ice creams shop has 31 flavors. Dan wants to buy a three scoop cone with 3 different flavors. How many different orders of flavors could he have? 

26,970

500

An MP3 player has 10 songs listed. What is the probability of the MP3 player will randomly play the first 3 songs? 

1/720

Independent and Dependent Events

100

Probability of rolling a number 1 on a cube and rolling a number 2 on another cube

1/36

200

Probability of spinner the color blue out of five colors and not rolling a 3 or 4 on a number cube?

2/30 or 1/15

300

Probability of rolling a 2 or 4 on a number cube and rolling a 5 on the second?

1/18

400

Mrs. Dantuono has a class of students with different eye colors. 5 students have blue eyes, 7 with brown, 4 hazel, and 4 with green. What is the probability of selecting two students in a row P(Green, Brown)

28/380 or 7/95

500

Mrs. Dantuono has a class of students with different eye colors. 5 students have blue eyes, 7 with brown, 4 hazel, and 4 with green. What is the probability of selecting two students in a row P(Hazel, Hazel)

12/380