Show:
Theoretical
Experimental
Counting Principle
Random
How Likely is it?
100
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%
100
Hasaan has a spinner with 5 equal sections, each a different color. After only 10 spins, the pointer had landed on red 40% of the time. After a whopping 1,000 spins, the pointer landed on red only 22% of the time. How can Hasaan account for this change in experimental probability?
As the number of trials increase, the experimental probability reaches closer to the theoretical probability. (The Law of Large Numbers)
100
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
100
Define "theoretical probability."
It is the probability of what should occur.
100
How likely is it that a number cube is tossed and lands on 3?
Unlikely
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
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%
200
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
200

Define "experimental probability".

The probability of what actually occurs.

200
How likely is it that a number cube is tossed and lands on any number 1-6?
Certain
300
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%
300
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 0.20, or 20%
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

Vera rolls two standard number cubes. What is the probability that both number cubes show an even number?

9/36 or 1/4 or 25%

300
How likely is it that a number cube lands on 2 and a coin lands on heads?
unlikely
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

Joaquin plays a game with a deck of cards. There are 72 action cards and 56 item cards. Joaquin selects a card at random, records whether it is an action card or an item card, shuffles it back into the deck. In 9 tirials, he selects 4 action cards and 5 item cards. How does the experimental probability compare to the theoretical probability of selecting an action card?

The theoretical probability is greater than the experimental probability.

400
What is the probability of rolling three 4's in a row on a number cube?
1/216
400
Describe the difference between events that are certain, likely, equally likely, unlikely, or never going to happen.
Certain would be 100% of the time, likely is anything greater than 50% of the time, equally likely is exactly 50% of the time, unlikely is anything less than 50% of the time, and never is anything that has a 0% chance of occuring.
400

Harold has a jar of coins; 5 are quarters, 4 are dimes, 7 are pennies, and 8 are nickels. He selects a coin at random. Decide if each outcome is likely or unlikely.

a. selecting a dime

b. selecting a penny or a nickel

c. selecting a quarter or dime

d. selecting a nickel

a. unlikely

b. likely

c. unlikely

d. unlikely

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

Hayley tosses a quarter, rolls a standard number cube, and tosses a nickel. What is the probability that Hayley rolls a number less than 5 and both coins land on different sides?

8/24 or 1/3 or 33.33%

500
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
500

Dmitiri has a deck of cards with 13 hearts, 13 diamonds, 13 spades and 13 clubs. Dmitri selects a card at random, writes the suit, and returns the card to the deck. He does this 30 times. Which suits have an experimental probability of being selected that is greater than their theoretical probability?

Frequency of each suit: H=9 D=8 S=10 C=3

Hearts, diamonds and spades.

500

Jorge has a box with different colors of tubes of paint. In the box, there are 7 tubes of blue paint, 4 tubes of red paint, 3 tubes of yellow paint, and 6 tubes of green paint. Jorge selects a tube of paint at random. Which is more likely: selecting a tube of blue or yellow paint, or selecting a tube of green or red paint?

They are equally likely.