Simple
Compound
Counting Principle
Vocabulary
How Likely is it?
100
Maria spinning a spinner. The spinner has 5 equal sections labeled A-D. What is the probability the spinner will land on the letter "A"?
1/5 or 20%
100

You flip a coin and spin a spinner with 5 different colored, equal sections. What is the probability of landing on heads and red?

1/10 or 10%
100
You are trying to decide what to wear to school. You know you have a green pair of pants, a red pair, and a blue pair. You also have a brown shirt, a plaid shirt, and a yellow shirt. How many different outfit combinations can you make?
9
100
Define "theoretical probability."
It is the probability of what should occur.
100

How likely is it that I pull a card from a deck of cards and it is red?


*Impossible*Unlikely*Equally likely*Likely*Certain*

Equally likely
200
A bag of M&M's has 5 red candies, 6 blue candies, 3 yellow candies, and 6 orange candies. What is the probability that you pick a yellow candy. Express your answer as a percent.
15%
200
Sarah flips a coin and rolls a die.  What is the probability of landing on heads and landing on 5?
1/12
200
What is the number of possible outcomes for spinning one spinner with 8 equal sections and another spinner with 6 equal sections?
48 possible outcomes
200
Define "experimental probability."
The probability of what actually occurs.
200

How likely is it that a number cube is tossed and lands on 1?


*Impossible*Unlikely*Equally likely*Likely*Certain*

Unlikely
300
You are playing a game with a regular die. You roll the die 30 times. About how many times you expect to roll a 3 or a 6?
About 10 times.
300
Tamara flips a coin and rolls a die.  What is the probability of landing on tails and landing on a number greater than 4?
2/12 or 1/6
300
An ice cream store sells special ice cream sandwiches. If there are 3 different kinds of cookies and 5 flavors of ice cream plus 2 different kinds of toppings, how many different ice cream sandwiches can be made?
30 types
300
Why is theoretical probability sometimes not the same as experimental? For example, if the chance of landing on Tails is 50% why when I flip a coin 10 times did I land on Tails 6 times?
Experimental depends on the number of trials you conduct and 10 trials is a small number. Experimental probability will get closer to the theoretical probability the more trials you do.
300

How likely is it that a 6 sided die is rolled and lands on 9?


*Impossible*Unlikely*Equally likely*Likely*Certain*

Impossible
400
You spin a spinner with 4 different color sections 500 times. About how many times should each color come up?
125 times
400
In a bag there are 10 blue marbles, 4 red marbles, 8 yellow marbles, and 2 orange marbles.   What is the probability of selecting a red marble, replacing it, then selecting a yellow marble?
1/18
400
A bag contains 4 red marbles numbered 1-4 and 2 blue marbles numbered 1-2. Draw a tree diagram to show the possible outcomes of drawing 2 marbles.
30 outcomes
400
Define outcome
The result of an experiment
400

How likely is it a coin lands on either heads or tails?



*Impossible*Unlikely*Equally likely*Likely*Certain*

Certain
500
On a farm there are 4 goats, 10 horses, 6 sheep, 5 pigs, and 15 cows.  The farmer will select one animal at random.  What is the probability that the farmer will select a goat or a sheep?
1/4 or 25%
500

In a bag there are 10 blue marbles, 4 red marbles, 8 yellow marbles, and 2 orange marbles. What is the probability of selecting a red marble, not replacing it, then selecting a yellow marble?

4/69

500
Mr. Kilgore is making next year's schedule for your class. The choices for each period of the day are listed below. Create a tree diagram to help Mr. Kilgore see all of his options. 1st period: Math or Science 2nd period: English, Social Studies, or Gym 3rd period: Art, Music, or Spanish
Math Science English SS Gym English SS Gym A, M, S A, M, S A, M, S A, M, S A, M, S A, M, S 18 combinations
500
Define Sample Space
All the possible outcomes
500

How likely is it that a number cube lands on 2 and a coin lands on heads?


*Impossible*Unlikely*Equally likely*Likely*Certain*

unlikely
M
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n
u