Games
What is the probability of rolling an odd number on a dice?
3/6 or 1/2
0.50
50%
If you have 10 songs in a Spotify playlist, what is the probability, in a percentage, that it will be your favorite song (you only have one favorite song)?
10%
0.625 and 62.5%
67%, 4/6, 0.67
A bag contains a 5 red bouncy balls, 3 blue bouncy balls and 2 yellow bouncy balls. What is the probability that a blue bouncy ball is chosen?
30%, 0.3, 3/10
65 students at Pence Middle School shared that they watched the Super Bowl out of 100 students surveyed. If there is 1,200 students in total, how many can we estimate actually watched the Super Bowl.
780 students at Pence Middle School may have watched the Super Bowl.
A survey was taken of 100 students at Pence Middle School about their favorite genre of music. 40 students said that their favorite genre was country. Is this an experimental or theoretical probability?
Experimental
What are the three ways to express probability?
A fraction, a decimal and a percentage.
If there are 15 balloons in total and five are red, what is the probability of a kid choosing a red ballon?
1/3, 0.34, 33%
After drawing 20 marbles, Emily ended up with four red marbles. Is this an example of theoretical or experimental probability?
Jamie watches volleyball twice a week and watches movies twice a week. The other three times they watch football. What is the probability that he will watch volleyball? (share your answer as a fraction and percentage.)
2/7 and 28.57%
There are roughly 40,600 female singers and musicians in the United States. There are roughly 62,300 male singers and musicians. What is the probability that a female singer/musicians is randomly selected?
Hint: 40,600+62,300 =102,900
0.39456
39.45%
40,600/102,900 --> 406/1,029
The expected probability.
You have a standard deck of cards (52 cards), what is the probability that you draw a face card (jack, queen, or king)? Round your answer to the nearest hundredth or percent.
0.23, 12/52, and 23%
A box contains 7 blue marbles, 3 red marbles, 4 green marbles and 6 yellow marbles. What is the probability that a randomly selected marble is blue?
35% (7/20)
A study involving 20 people asked if they preferred to watch football or basketball. 7 people preferred football and the other 13 preferred basketball. Is this an example of experimental or theoretical probability?
Experimental probability
15 students out of 100 students in a survey shared that they loved listening to Taylor Swift. If there are 800 students, how many can be expected to like listening to Taylor Swift.
120 students can be expected to like Taylor Swift.
What is experimental probability?
This is what actually happens during an experiment.
A dice is rolled, what are the chances that you rolled higher than a 4?
34% (2/6)
What is the probability that a marble is yellow or red given that there are 3 blue marbles, 7 red marbles, 4 yellow marbles and 6 green marbles.
55% (11/20)
There are 2 volleyball, 3 footballs, and 6 soccer balls. Is it theoretical or experimental probability if the question was: what is the probability of picking a soccer ball?
Theoretical probability
Jenny has the option between 6 different concerts to attend (Taylor Swift, Ed Sheeran, Olivia Rodrigo, Coldplay, OneRepublic, and Noah Kahan.) She assigns each artist a number on a dice. She really wants to see Taylor Swift and assigns Taylor the number 2. If she rolls the dice 300 times, what is the probability of Jenny landing on a 2.
50
What is the law of large numbers?
If an experiment is repeated a large amount of times, the average of the results will be close to the expected population value
Is this an experimental or theoretical probability:
What is the probability that I roll a 2 or a 4 on a dice?