Random
Theoretical
Counting Principle
Vocabulary
How Likely is it?
100

Mrs. N's favourite number.

What is 3?

100

A bag contains these granola bars: 12 apple, 14 banana, 18 raisin, and 10 regular. You pick a bar at random. What is the probability of picking a banana granola bar?

14/54 or 0.26 (0.2592) or 26%

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 a coin is flipped and lands on tails?
Equally likely
200

Mrs. N's background.

What is Canadian and Greek?

200

What is the probability of rolling two odd numbers in a row with a standard number cube?

1/4, or 0.25, or 25%

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 "certain".

A possible result of an experiment or a possible answer to a survey question.

200
How likely is it that a number cube is tossed and lands on 3?
Unlikely
300

The number of schools Mrs. N has taught at.

What is 3?

300

A letter tile is randomly selected from a bag, recorded, and replaced 100 times. The results are listed below. What is the experimental probability of selecting the letter "E"? A = 16 E = 11 I = 29 O = 19 U = 25

11/100 or 0.11, or 11%

300
Amiya and Keyshawn are candidates for class president of the 7th grade. Ajaye, Chishon, and Laura are candidates for vice president. How many winning combinations are possible?
6
300

Define "outcome".

A possible result of an experiment or a possible answer to a survey question.

300

How likely is it that a number cube from 1 to 6 is tossed and it lands on 8?

never going to happen

400

The day Mrs. N started teaching you this year.

What is April 8th, 2019?

400

Pedro recorded the types of birds that visit his bird feeder. Based on the results below, what is the probability the next bird will be a chickadee? Woodpecker = 3 Chickadee = 5 Cardinal = 1 Sparrow = 13 Blue Jay = 3

1/5 (or 5/25), or 0.20, or 20%

400

Ms. French is packing for a trip. She packs a white blouse, a pink blouse, a blue blouse, and a green blouse. She also packs a black suit, a navy blue suit, and a gray suit. What is the probability that the first outfit she wears is the gray suit with a pink blouse?

1 out of 12

400

`What a tree diagram is used to show.

Used to show the possible outcomes for an experiment that had two or more actions.

400
How likely is it that a number cube is tossed and lands on any number 1-6?
Certain
500

Mrs. N's son's name.

What is Carson?

500

Two hundred fifty tickets for a draw were sold. The first ticket drawn wins the prize. Ivan purchased 25 tickets. What is the probability Ivan will not win?



225/250 or 0.90 or 90%

500
What is the probability of rolling three 4's in a row on a number cube?
1/216
500

Define "relative frequency."

What is the number of times an outcome occurs divided by the total number of times the experiment is conducted?

500
How likely is it that a number cube lands on 2 and a coin lands on heads?
unlikely
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