Show:
Theoretical
Experimental
Counting Principle
Estimated and Experimental Probability
How Likely is it?
100
Maria is spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability that the spinner will land on the letter "A"?
What is 1/4 or 0.25, or 25%?
100
Hasaan has a spinner with 5 equal sections, each a different color. After only 10 spins, the pointer hand landed on red 40% of the time. After a whopping 1,000 spins, the pointer landed on red only 22% of the time. How can Hasaan account for this change in experimental probability?
What is "As the number of trials increase, the experimental probability reaches closer to the theoretical probability. (The Law of Large Numbers)"?
100
You are trying to decide what to wear to school. You know you have a green pair of pants, a red pair, and a blue pair. You also have a brown shirt, a plaid shirt, and a yellow shirt. How many different outfit combinations can you make?
What is 9?
100
Define "experimental probability."
It is the probability that is the result of an experiment or trial.
100
How likely is it that a coin is flipped and lands on tails?
What is "Equally likely"?
200
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?
What is 32/48, or 2/3 or 0.67, or 67%?
200
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.
What is 11/100 or 0.11, or 11%?
200
If your options for lunch are 3 types of noodles, milk or water, 4 types of sauce and 2 types of ice cream, how many possible lunches could you choose from?
What is 48 possible outcomes?
200
A soccer store sold 9 soccer balls, 21 soccer cleats, and 8 pairs of shin guards. What is the experimental probability, written as a decimal number, of buying a pair of cleats?
What is 0.55?
200
How likely is it that a number cube is tossed and lands on 3?
What is "Unlikely"?
300
What is the probability of rolling two odd numbers in a row with a standard number cube?
What is 1/4, or 0.25, or 25%?
300
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.
What is 5/25 or 1/5?
300
Draw a tree diagram to show all of the possible outcomes for tossing a coin and rolling a fair number pyramid that has four sides labeled 1 through 4
What is Heads {1,2,3,4 and Tails{1,2,3,4 (use arrows to connect the numbers to heads and tails)?
300
What is the sample space of spinning a spinner with the letters S, U, and N, flipping a quarter (use H for heads and T for tails)?
What is SH, ST, UH, UT, NH, NT?
300
How likely is it that a number cube is tossed and it lands on 8?
What is "never going to happen"?
400
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?
What is 1/5, or 0.20, or 20%? (Hint: 3/6 x 2/5)
400
Out of 200 customers who purchased at a store, 30 bought shorts only, 80 t-shirts only, and 90 bought both shorts and t-shirts. Based on the previous purchases, about how many customers should be expected to buy t-shirts only from the next 180 customers who buy something at the store?
What is about 72 customers?
400
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?
What is 1 out of 12?
400
When trying to simulate an experiment, a student used a number cube (numbered 1 to 6). The probability of buying a red apple is 0.60 and the probability of buying a green apple is 0.40. How could the student conduct the simulation with the number cube?
What is "three numbers represent buying a red apple and 2 numbers represent buying a green apple. Ignore a number"?
400
How likely is it that a number cube is tossed and lands on any number 1-6?
What is "Certain"?
500
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?
What is 1/25 or 0.04, or 4%? ( Hint: multiply the probabilities 1/5 x 1/5)
500
A storeowner made a list of the number of greeting cards sold last month. The store sold 167 thank-you cards, 285 birthday cards, and 56 blank cards. Based on these data, about how many customers will buy thank-you cards out of the next 150 customers?
What is about 48, 49 or 50? (Answer will depend on rounding)
500
What is the probability of rolling three 4's in a row on a number cube?
What is 1/216?
500
You are given the following random numbers: 345107891236541223474066577639. How would you simulate an experiment where 70% of the cars sold are Imported cars and 30% of the cars sold are American?
What is "assign any 7 numbers (suppose 0,1, 2, 3, 4, 5, 6) to Imported cars and the other 3 numbers (suppose 7, 8, 9) to American cars"?
500
Cassie rolls a fair number cube with 6 faces labeled 1 through 6. She rolls the number cube 300 times. Which result is most likely? A)Cassie will roll a 1 or a 2 about 50 times. B) Cassie will roll a 1 or a 2 exactly 50 times. C) Cassie will roll an even number about 150 times. D) Cassie will roll an even number exactly 150 times.
What is Choice C?