Theoretical
Experimental
Making Predictions
Vocabulary
How Likely is it?
100
Maria is spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the spinner will land on the letter "A"?
1/4 = 25%
100
Hasaan has a spinner with 5 equal sections, each a different color. After a whopping 1,000 spins, the pointer landed on red 220 times.What is the experimental probability?
220/1000=22%
100
If we threw a die 300 times, how many times will we get an even number?
150 times
100
Define "theoretical probability."
It is the probability of what should occur.
100
How likely is it that a coin is flipped and lands on tails? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
Equally likely
200
From a spinner with the numbers 1 - 10, what is the probability of landing on a multiple of 3
3/10=30%
200
Zarya conducted an experiment of drawing marbles from a bag. She recorded the 20 results below. Based on the results, what is the probability the next marble will be blue? Color Times drawn Red 1 Purple 7 Green 5 Blue 4 Yellow 3
4/20 = 20%
200
A spinner with 8 equal sections is labeled with A, B, C, D, E, F, G, and H. If we spin it 600 times, how many times can we predict that we will land on an A, B, or C?
225 times
200
Define "experimental probability."
The probability of what actually occurs.
200
How likely is it that a number cube is tossed and lands on 3? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
Unlikely
300
What is the probability of rolling an odd number with a standard number cube?
3/6=50%
300
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 = 11%
300
When flipping a coin, how many times will it land on tails when it is flipped 800 times?
400
300
What percent would it be if an event was certain to happen?
Certain would be 100% of the time
300
How likely is it that a number cube is tossed and it lands on 8? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
Impossible
400
There are 3 red marbles, 2 green marbles, and 1 yellow marble in a box. One marble is taken out. What is the probability the marble that was taken out was green?
2/6=33%
400
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 = 20%
400
If a bag held 2 red, 4 green, and 6 blue marbles and we draw 330 times, how many of them will be a green marble?
110
400
How likely is it if there is a 25% chance? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
B. Unlikely
400
How likely is it that a number cube is tossed and lands on any number 1-6? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
Certain
500
Jarvonya spins a spinner with 5 equal sections numbered 1-5. What is the probability she will spin a 4?
1/5=20%
500
A six-sided die is thrown 50 times. Using the list below, what is the experimental probability of rolling a 3? Number on Die How Many Times it Landed on that Number 1 8 2 6 3 7 4 12 5 10 6 7
7/50 = 14%
500
If there is a spinner with 15 equal sections labeled 1-15 and it was spun 222 times, how many could we expect to get a 1, 3, 5, or 7, or 9?
74
500
What is probability?
The chance of something happening.
500
How likely is it that a number cube lands on anything but a 4? A. Impossible B. Unlikely C. Equally likely D. Likely E. Certain
Likely