Bao 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"?
1/8 or 0.125, or 12.5%
What do you call the probability that actually happens?
Experimental Probability
A factory makes ceramic bowls. Out of 50 bowls, 3 are defective. Predict how many bowls out of 200 will be defective?
12
What is the name of an event consisting of only one outcome?
Simple Event
The classic wood carousel at Carousel Park in Houston, TX has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse?
1/2, or 0.50, or 50%
Owen made an experiment. He rolls the die 20 times and it landed on number 3 four times. Based on his experiment, if he rolls the die 100 more times, how many times will it land on a 3?
15
A spinner has 5 congruent sections labeled 1 to 5. The theoretical probability of landing on an odd number is 3/5. If Joanna spins the spinner 30 more times, how many times should she get an odd number?
18
What do you call an event made up of two or more simple events?
Compound event
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
Based on the students who attended the STAAR Bootcamp today, 12 out of 40 students are wearing white shoes. If 200 students attend the Bootcamp two weeks from now, predict how many will wear white shoes?
60
Events for which the outcome of one event does not affect the probability of a second event.
Independent Events
Vy 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? Simplify your fraction.
Woodpecker = 3 Chickadee = 5
Cardinal = 1 Sparrow = 13
Jay = 3
1/5
Out of 15 tennis players who attended the game last Thursday, 3 were wearing a white shirt. If 250 tennis players attend the next game, how many will NOT wear a white shirt?
200
A set of all possible outcomes
Sample Space
Jacob made an experiment with a six-sided die thrown 50 times. The result was listed below, what is the difference between the experimental and theoretical probability of landing number 5?
1 = 8 times 2 = 6 times 3 = 7 times
4 = 12 times 5 = 10 times 6 = 7 times
1/30
Mr. Montenegro has 21 students who went to lunch in 4th period. 14 of them ordered pizza for lunch. If we used his class as a sample, how many students will not order pizza out of 300 students?
100
The set of all outcomes that are not the event.
Complement