Theoretical
Arrange the following terms in order from least likely to most likely: likely, certain, even chance, impossible, unlikely.
impossible, unlikely, even chance, likely, certain
Jason picks lollies out of a bag. He has picked 10 red lollies and 20 blue lollies out of the bag. What is the probability that the next lolly is red?
1/3
Describe the difference between events that are certain, likely, equally likely, unlikely, and impossible
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.
What is the probability of rolling a prime number on a fair dice?
1/2
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. What is the experimental probability of landing in red? Express your answer as a fraction.
2/5
What is the sample space?
The set of all possible outcomes of an experiment.
What is the probability of rolling a 4 on a fair dice? Express your answer as a percentage to 2 decimal places.
16.67%
A factory inspects light bulbs and finds that 15 out of 500 them are faulty. How many light bulbs would you expect to be faulty out of 2500?
75
What is a trial?
Each action or observation in an experiment.
Jarvonya spins a spinner with 5 sections numbered 1-5. The chance the of landing on a 1 is 1/16 ,2 is 1/2, 3 is 1/10, 4 is 5%. What is the chance it lands on a 5?
23/80
A tile containing a vowel is randomly selected from a bag and recorded 120 times. The results are listed below. What is the experimental probability of selecting the letter "E"?
A = 17 E =? I = 29 O = 19 U = 25
1/4
What is the formula for expected number of occurences?
Expected number of occurences = (probability) x (number of trials)
Two dice are rolled. What is the probability that the sum of the top faces equal to 3?
1/18
A company produces red, blue, and green toy cars. They inspect 200 cars and find 80 are red, 60 are blue, and 60 are green. What is the experimental probability of picking a blue car or a green car? And how many red cars would they expect to produce if they make a total of 5000 cars?
Experimental Probability of Blue or Green Car
Pr(Blue or Green) = 3/5
You would expect 2000 red cars.
What is the difference between a trial and an outcome?
Trial is a single action or observation of an experiment, while an outcome is the result of that trial.