Show:
Theoretical
Experimental
Compound Events/Probability
Vocabulary
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"?

What is 1/8 or 0.125, or 12.5%

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

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

The probability that is determined on the basis of reasoning.  The ratio of favorable events to the total number of events that could occur

What is "Theoretical Probability"

100

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

What is Equally likely

200

In a game, the probability of correctly guessing which of 5 boxes contains a tennis ball is 1/5 or 20%.  About how many winners would be expected if 60 contestants play the game?

What is 12 winners?

200

Jess spins a pointer 25 times and finds an experimental probability of the pointer landing on 3 to be 4/25 or 16%.  The theoretical probability of the spinner landing on 3 is 1/4 or 25%.  Why might there be a significant difference between the theoretical and experimental probabilities?

More trials are needed.  After Jess conducts more trials, the experimental probability should approach the theoretical probability of Jess's event.

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

The probability based on trials.  This is the ratio of the number of outcomes in which a specific event occurs to the total number of trials.

What is "experimental probability"?

200

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

What is Unlikely

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
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

This is a model of a real-world situation that can be used to find probabilities.

What is a "Simulation"?

300

How likely is it that a standard number cube is tossed and it lands on 8?

What is impossible

400

Javin spins a spinner with 5 equal sections numbered 1-5 and he spins another spinner with 5 equal sections with the letters A-E. What is the probability he will spin a 4 and a B?

What is 1/25 or 0.04, or 4%

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 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?

What is 1 out of 12?

400

The set of all possible outcomes of an event

What is a "Sample Space"

400

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

What is Certain

500

You create  two digit numbers using the numbers 2, 6,  7, 9 and put the numbers in a box.  What is the probability of choosing a number that contains both a 6 and 9?

What is 2/12 or 1/6, or 16.67%

500

In Staci's town, 60% of registered people vote regularly.  A spinner with equal-sized sections numbered 0-9 can be used to represent those who do and those who do not vote.  She assigns the numbers 0-5 to those who "do vote" and 6-9 to those who "do not vote"  Based on the simulation results, what is the probability that at least one person out of three does not vote?

380   799   331   205   851   182   117   768   715   410

What is 4/10 or 40%

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

An event that consists of two or more events.

What is a compound event?
500

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

What is unlikely