A bag has 9 balls with numbers from 3 to 11. You take out 1 ball.
What is the probability of getting a ball with an odd number? | |
[1] | Roll 18 6-sided dice.
How many times would you expect to get more than or equal to 4? | |
[1] |
We asked a group of kids how many Pillows they eat in a week. Here are the results:
What fraction of the kids eat exactly 3 Pillows in a week? | |
[2] | A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score exactly 4? | |
[2] |
We asked a group of boys how many Oranges they eat in a month. Here are the results:
What fraction of the boys eat exactly 4 Oranges in a month? | |
[2] | Roll 150 6-sided dice.
How many times would you expect to get less than 4? | |
[1] |
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.2 | 0.3 | | blue | orange | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being pink? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score more than 5? | |
[2] | A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
| | 0.35 | 0.2 | 0.1 | 0.25 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[1] |
Roll 72 6-sided dice.
How many times would you expect to get more than 5? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.2 | | | red | yellow | green | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow? | |
[1] |
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
What is the probability of rolling a number that is bigger than 3? | |
[1] | A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
What is the probability of rolling a number that is bigger than 3 and smaller than 5? | |
[1] |
Flip a coin 12 times.
Each time a Tail comes up you win $2. It costs $14 to play (paid once). How much money would you expect to make altogether? | |
[1] | An obstacle course has 2 Fences and 1 Ditches. You have a 90% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
|