Marbles
Spinners
Dice and Coins
Two-way Tables
Two-way Tables (TOO)
100
A bag with 6 marbles has 2 blue marbles, 1 red marble, and 3 yellow marbles. A marble is chosen from the bag at random. What is the probability that it is blue? P(Blue)
2/6 or 1/3 or 33.3%
100
A spinner with 6 equally sized slices has 3 yellow slices, 1 blue slice, and 2 red slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a yellow slice? P(Yellow)
3/6 or 1/2 or 50%
100
An 8-sided die is rolled. What is the probability of rolling an even number? P(Even)
4/8 or 1/2 or 50%
100
How many total Dogs?
20
100
How many total Students?
23
200
A bag has 2 yellow marbles, 4 blue marbles, and 4 red marbles. A marble is chosen from the bag at random. What is the probability that it is yellow? P(Yellow)
2/10 or 1/5 or 20%
200
A spinner with equally sized slices has 2 blue slices, 4 red slices, and 4 yellow slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a blue slice? P(Blue)
2/10 or 1/5 or 20%
200
A 20-sided die is rolled. What is the probability of rolling a prime number? P(Prime)
8/20 or 2/5 or 40%
200
P(Cat)
30/50 or 3/5 or 60%
200
P(T-shirt)
30/50 or 60%
300
Two bags of marbles. One bag has 2 blue marbles, 1 red marble, and 3 yellow marbles. The other has 2 yellow marbles, 4 red marbles, and 4 blue marbles. What is the probability of choosing a red marble from each bag? P(Red and Red)
2/30 or 1/15 or 6.7%
300
Two spinners are side-by-side. One has 2 red and 2 blue slices, the other has 3 red and 2 blue slices. What is the probability of spinning blue on both spinners? P(Blue and Blue)
4/20 or 1/5 or 20%
300
If you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll a 4? P(Tails and 4)
1/12 or 8.3%
300
P(Dog | No Vaccine)
6/25 or 24%
300
P(T-shirt | Student)
12/23 or 52.2%
400
A bag has 2 yellow marbles, 4 red marbles, and 4 blue marbles. What is the probability of choosing 3 red marbles in a row (with replacement)?
64/1000 or 6.4%
400
A spinner with equally sized slices has 2 blue slices, 4 red slices, and 4 yellow slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a blue or yellow slice? P(Blue or Yellow)
6/10 or 3/5 or 60%
400
If you flip a coin and roll a 6-sided die, what is the probability that you will flip tails and roll an even number? P(Tails and Even)
3/12 or 1/4 or 25%
400
P(No Vaccine | Cat)
19/30 or 63.3%
400
P(Parent | Sweatshirt)
9/20 or 45%
500
A bag has 3 yellow marbles, 3 red marbles, and 4 blue marbles. What is the probability of choosing 3 red marbles in a row (without replacement)?
6/720 or 0.83%
500
A spinner is spun 3 times in a row. The first spin lands on a red slice, the second on a blue slice, and the third on red again. Are the events dependent or independent?
Independent
500
A die is rolled 3 times, then a coin is flipped 5 times. The die lands on 4 every time, and the coin lands on heads every time. Are the events independent or dependent?
Independent
500
P(Dog or Vaccine)
31/50 or 62%
500
P(Student or Sweatshirt)
32/50 or 64%