Theoretical
Maria is flipping a coin. What is the theoretical probability the coin will land on heads?
What is 1/2 or 0.5?
Layla flipped a coin 10 times and landed on heads 4 times. What is the experimental probability of landing on heads?
What is 2/5 or 0.4
If you flip a coin 10 times, about how many times should it land on heads?
Define "probability."
The chance that an event will occur
Classify the likelihood of each: Impossible, Unlikely, Equally Likely, Likely, Certain
Tay: 1/6
Trey: 4/6
Tyrone: 2/6
U, L, U
The classic wood carousel at Carousel Park in Hampton, VA has 32 horses and 15 of them are standing horses. What is the probability of randomly selecting a standing horse?
15/32 or 0.46875
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 experimental probability of landing on 6?
1/10 or 0.1
Define "experimental probability."
The probability of what actually occurs.
Classify the likelihood of each: Impossible, Unlikely, Equally Likely, Likely, Certain
Evelin: 0.5
Elizabeth: 0.05
Eli'Jah: 0.45
E, U, U
A spinner has 7 sections of equal size. They are numbered 1-7. What is the theoretical probability of landing on a number greater than 3 ?
4/7
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
Trent has 30 marbles in a bag. 4 are blue, 9 are red, 8 are yellow, and 9 are white. If he randomly selects from the bag & put each marble back after each time, how many times would you expect him to get yellow if done 120 times
About 32 times
Classify the likelihood of each: Impossible, Unlikely, Equally Likely, Likely, Certain
Jalayha: 0/29
Jaliya: 1
Jeremiah: 0.0
I, C, I
There are 11 red marbles, 14 green marbles, and 5 yellow marble in a box. One marble is taken out of the box. What is the probability that the marble is red or yellow?
16/30 or 8/15 or 0.533
Pedro 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?Woodpecker = 3 Chickadee = 5 Cardinal = 1 Sparrow = 13 Blue Jay = 3
5/25 or 1/5, or 0.20
There are 114 students in the 7th grade. The theoretical probability of choosing a female student to answer a question is about 45%. How many girls are in the 7th grade ?
About 51 girls
Describe the difference between Likely & Equally Likely
Equally = 0.50 =1/2
Likely > 0.50 or 1/2
Classify the likelihood of each: Impossible, Unlikely, Equally Likely, Likely, Certain
Aubrey: 43/87
Austin: 11/40
Audrianna: 0.238
U,U,U
The ratio of roses to total flowers is 16:40. The rest of the flowers are lillies. What is the probability of getting lillies ?
24/40 or 0.6 or 3/5
A bag of marbles has 8 red, 5 purple, 2 green, & 3 orange. If this experiment is completed 325 times, how many times would you predict to NOT get red ?
180 or 181 rounded up
A bread making machine creates good-shaped slices 78/80 times. A company loses 0.02$ for each bad slice. How much would they expect to lose if they made 1200 slices ?
The box method uses Theoretical & Experimental to do what exactly?
To predict how many times we expect something to happen during an experiment, based on theoretical. "About 15 times" since it is a prediction
Classify the likelihood of each: Impossible, Unlikely, Equally Likely, Likely, Certain
Kavy: 0.45
Kevin: 1/20
King: ?