Theoretical
Maria 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"? (hint: multiply)
1/8 or 0.125, or 12.5%
Hasaan has a spinner with 5 equal sections, each a different color. After 10 spins, the pointer had landed on red 40% of the time. After 1,000 spins, the pointer landed on red 22% of the time. What is the experimental probability of landing on red?
22%
Define "theoretical probability."
It is the probability of what we expect to occur.
How likely is it that a coin is flipped and lands on tails?
50%
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 or 66.7%
Guess how many green candies are in the bag based on the handful I pull out and knowing the total is 17. Guesses within 1.5 will count as correct.
5 green
Define "experimental probability."
The probability of what actually occurs.
How likely is it that a number cube is tossed and lands on 3?
1/6 or 16.7%
What is the probability of rolling two odd numbers in a row with a standard number cube? (multiply)
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 or 0.11, or 11%
What is the probability of an event that is certain?
Certain would be 100% of the time
How likely is it that a number cube is tossed and it lands on 8?
0%
There are 2 red marbles, 2 green marbles, and 1 yellow marble in a box. One marble is taken out and replace. A second marble is then taken out and replaced. What is the probability both marbles were red? (multiply)
2/5 * 2/5 = 4/25 = 16%
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 = 1/5, or 0.20, or 20%
Define "sample space."
All possible outcomes of en event
How likely is it that a number cube is tossed and lands on a number 1 through 6?
100%
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? (multiply)
1/5 * 1/5 = 1/25 = 0.04 = 4%
A six-sided die is thrown 50 times. Using the list below, compare the theoretical probability of rolling a 3 to 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)
(Theoretical = 17%, Experimental = 14%)
Define "simulation."
A mathematical model of a real event
How likely is it that a number cube lands on 2 and a coin lands on heads? (hint: multiply)
1/6 * 1/2 = 1/12 or 8.3%