Theoretical Probability
What is the definition of theoretical probability?
The ratio of favorable outcomes to the number of possible outcomes. (answers may vary)
What is the definition of experimental probability?
The ratio of the number of times an event occurs to the total number of trials. (answers may vary)
How can you make a prediction from experimental or theoretical probability?
Use a proportion and cross multiply to solve. (answers may vary)
Mark and Abby played a game which required flipping a coin. Mark won when the coin landed heads and Abby won when the coin landed tails. Mark won 5 times and Abby won 7. What is the experimental probability that Mark wins? Write your answer as a fraction.
5/7
When is Miss Beumer's birthday month?
October
P(6) on a regular number cube
1/6
You flip a coin 3 times and land on tails 2 times and heads 1 time. What is the experimental probability for landing on heads? Write your answer as a fraction.
1/3
Martika surfs with her friends at Virginia Beach. Her friend, Mark, caught 8 waves out of 20 possible waves to ride into shore. They plan to stay out in the water for 50 more waves. How many of the 50 waves do you predict Mark will catch?
20 waves
A bag has 4 red marbles, 3 green marbles, 8 blue marbles and 5 yellow marbles. Find the probability that Susan will randomly choose a green marble from the bag.
3/20
Who performed at the superbowl this year?
Kendrick Lamar
P( even number) on a regular number cube
1/2
You roll a dice 12 times. You land on 4 three times. What was the experimental probability for landing on a 4? Write your answer as a percent rounded to the nearest hundredth.
33.33%
A clothing store has determined that approximately 35% of their customers spend at least $20 per visit. Yesterday, 143 people spent at least $20. How many customers do you predict came through the store yesterday? Round to the nearest whole number.
about 50 people
A student is chosen at random from a 7th grade math class of 16 girls and 8 boys. Find P(girl). Write your answer as a fraction in simplest form.
2/3
Who won march madness in the men's bracket this year?
Florida
When rolling a dice, P(not a 5). Write your answer as a percent rounded to the nearest hundredth.
83.33%
A number cube is rolled 24 times and lands on 2 four times and on 6 three times. Find the experimental probability of NOT landing on a 6. Write your answer as a percent rounded to the nearest hundredth.
87.5%
A survey asked sixth graders what their favorite hobby was. 1 person said singing, 3 said hanging with friends, 3 said bike riding, 5 said watching TV, 3 said playing on their computer, and 10 said playing sports.Suppose 150 sixth-grade students were surveyed. How many can be expected to say that playing sports is their favorite hobby?
60 sixth graders
In one hour, a restaurant served 85 beef dishes, 45 chicken dishes, and 30 fish dishes. What is the probability if you chose a meal at random it would be a beef dish? Express the probability as a percent. Round to the nearest hundredth.
53.13%
How many bones do adult humans have?
206
Think of spinning a wheel with only numbers 1-30. Find P(factors of 15). Write your answer as a percent rounded to the nearest hundredth.
13.33%
You roll a dice 22 times. You land on 1 two times, 2 four times, 3 seven times, 4 three times, 5 four times, and 6 two times. What was the experimental probability of landing on an even number? Write your answer as a percent rounded to the nearest hundredth.
40.91%
A survey asked for peoples favorite winter activity. 14 said building a snowman, 69 said snowboarding/skiing, and 21 said sledding. If 500 people had responded, how many would have been expected to list sledding as their favorite winter activity? Round to the nearest whole person.
about 101 people
Approximately 24% of all travelers through a certain airport went through additional security screening. In the last week, 2,590 travelers received additional screening at this airport. How many travelers do you predict came through the airport last week? Round to the nearest whole number.
about 622 travelers
Who beat Pete Maravich's scoring record last year?
Caitlin Clark