Theoretical
Maria is spinning a spinner. that has 4 equal sections labeled A-D. What is the probability the spinner will land on the letter "A"?
1/4 or 25% or .25
Hasaan has a spinner with 5 equal sections, each a different color. After 10 spins, the pointer had landed on red 4 times. What was his experimental probability?
2/5
You are trying to decide what to wear to school. 3 shirts and 4 pairs of pants to choose from. How many different outfit combinations can you make?
12
Define "theoretical probability."
It is the probability of what should occur.
How likely is it that a coin is flipped and lands on tails?
(never going to happen, unlikely, equally likely, very likely, always going to happen)
Equally likely
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse?
2/3
Jack flips a coin 100 times. He gets heads 42 times, and tails 58 times. What is the experimental probability of getting heads?
42/100 = 21/50
What is the number of possible outcomes for spinning one spinner with 8 equal sections and rolling a 6-sided number cube?
48 possible outcomes
Define "experimental probability."
The probability of what actually occurs.
How likely is it that a number cube is tossed and lands on 3?
(never going to happen, unlikely, equally likely, very likely, always going to happen)
Unlikely
What is the probability of rolling two odd numbers in a row with a standard number cube?
1/4, or 0.25, or 25%
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
Amy and Shawn are candidates for class president of the 7th grade. Ally, Chris, and Laura are candidates for vice president. How many winning combinations are possible?
6
Give an example of a probability of an experiment that has a 0% chance of happening.
TBD
How likely is it that a number cube is tossed and it lands on 8?
(never going to happen, unlikely, equally likely, very likely, always going to happen)
never going to happen
Jarvonya spins a spinner with 5 equal sections numbered 1-5 and she spins another spinner with 5 equal sections with the letters A-E. What is the probability she will spin a 4 and a B?
1/25
Pedro flipped a coin 10 times and got tails 3 of those times. Based on this, if he flipped the coin 1,000 times, how many tails would he get?
300
Ms. French is packing for a trip. She packs a white blouse, a pink blouse, a blue blouse, and a green blouse. She also packs a black suit, a navy blue suit, and a gray suit. What is the probability that the first outfit she wears is the gray suit with a pink blouse?
1 out of 12
Define "independent event."
When one event occurs and the item is replaced before the second event occurs.
How likely is it that a number cube is tossed and lands on any number 1-6?
(never going to happen, unlikely, equally likely, very likely, always going to happen)
Certain
There are 3 red marbles, 2 green marbles, and 1 yellow marble in a box. One marble is taken out and not replaced. A second marble is then taken out and not replaced. What is the probability both marbles that were taken out are red?
1/5
Hasaan has a spinner with 5 equal sections, each a different color. After 10 spins, the pointer had landed on yellow 2 times. Which is greater, the theoretical or experimental probability of landing on yellow?
Th is 1/5, E is 1/5. So they are equal!
What is the probability of rolling three 4's in a row on a number cube?
1/216
Define "dependent event."
When one event occurs and that item is not replaced before the second event occurs.
How likely is it that a number cube lands on 2 and a coin lands on heads?
(never going to happen, unlikely, equally likely, very likely, always going to happen)
unlikely