Theoretical
Probability
Counting Principle
Random Facts (not math)
How Likely is it?
100
Maria is flipping a coin and spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the coin will land on heads and the spinner will land on the letter "A"?
1/8 or 0.125, or 12.5%
100

If there is a 65% chance of rain. What is the probability that it does not rain? As a fraction

35/100 or 7/20 or 35%

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

What is the state bird of Illinois? 

Northern Cardinal / Cardinal

100

How likely is it that a coin is flipped and lands on tails?

Equally likely. 50/50. 1/2

200
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse?
1/2, or 0.50, or 50%
200

You are taking a multiple choice test. You can pick answer A, B, C, D, or E. What is the probability that you select the correct answer? 

1/5 or 20%

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

Where was the Declaration of Independence signed?

Philadelphia, PA / Independence Hall 

200

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

1/6. 

300
What is the probability of rolling two odd numbers in a row with a standard number cube?
1/4, or 0.25, or 25%
300

Mrs. Phillips has 10 identical cans without labels. She knows that she had 1 can of peas, 5 cans of corn, 1 can of carrots, and 3 cans of beets. She opens one can. What is the probability it is corn or beets?

4/5 or 80%

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

Name 4 major rivers in the US

Mississippi, Colorado, Missouri, Ohio, Rio Grande, Hudson, Yukon, Columbia

300

How likely is it that a number cube (1-6) is tossed and it lands on 8, 9, 10, or 11

0/6

400
There are 3 red marbles, 2 green marbles, and 1 yellow marble in a box. One marble is taken out and not replaces. A second marble is then taken out and not replaced. What is the probability both marbles that were taken out are red?
1/5, or 0.20, or 20%
400

7% of Americans are vegetarians. If you ask a random person whether he or she is a vegetarian, what is the probability that the person is not a vegetarian?

93% or 93/100
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 is Challand Middle School named after? 

Harold Challand, a former administrator of SPS.

400

How likely is it that a number cube (1-6) is tossed and lands on any number less than 15?

100%. 1/1

500
Jarvonya spins a spinner with 5 equal sections numbered 1-5 and she spins another spinner with 5 equal sections with the letters A-E. What is the probability she will spin a 4 and a B?
1/25 or 0.04, or 4%
500

Using the letters K, A, O, Q, B, R, E, and S. What is the probability of selecting a constant, or A? 

6/8 or 3/4 or 75%

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

Tie Breaker: According to the 2020 census, how many residents does Sterling, IL have? 

14,774 people 

500

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

1/12. 6 outcomes for cube, 2 for the coin. 1/12 is 2 and heads.