Layla flipped a coin 10 times and landed on heads 4 times. What is the relative frequency of landing on heads?
What is 4/10, 2/5, 0.4, or 40%?
If you flip a coin 10 times, about how many times should it land on heads?
Jason rolled a die twenty times. He landed on 2 five times, 3 seven times, 6 two times, and 5 six times. What is the relative frequency of landing on 6?
2/20, 1/10, 0.1, or 10%
Define "relative frequency."
The ratio of favorable outcomes to the total number of outcomes in an experiment.
What is the probability of rolling a number greater than 2 with a standard number cube?
What is 4/6, 2/3, 0.66, or 66%?
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%
How likely is it that a number cube is tossed and it lands on 8?
Impossible
Pedro spins a spinner 60 times. 14 spins land on red, 23 on green, and 22 on blue. What is the relative frequency of spinning a green or blue?
45/60, 3/4, 0.75, 75%
There are 20 students in Ms. Williams class. The theoretical probability of choosing a female student to answer a question is 25%. How many girls are in the class?
5 girls
Describe the difference between events that are certain, likely, unlikely, or impossible.
Certain would be 100% of the time, likely is anything greater than 50% of the time, unlikely is anything less than 50% of the time, and impossible is anything that has a 0% chance of occuring.
Jerome spins a spinner with 5 equal sections numbered 1-5. What is the probability he will spin and land on a composite number?
What is 1/5 or 0.2, or 20%?
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.
Carley has a 0.1 chance of winning Ms. Williams raffle. If there are 30 tickets in the bucket, how many of the tickets have Carley's name on it?
What do you call the set of all possible outcomes?
How likely is it that a number cube lands on a number greater than 2?
Likely