There are 12 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | A bag has 5 balls with number 9 and 3 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
| A bag has 3 balls with number 9 and 4 balls with a number 6. What will be the average of the numbers of the balls taken out of the bag | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 5? | |
[2] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less 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:
| | 0.5 | 0.25 | 0.05 | 0.2 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 2? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | red | pink | purple | | Color |
How many purple balls were in the bag? | |
[1] | Roll 126 6-sided dice.
How many times would you expect to get a number more than 3? | |
[1] |
We asked a group of boys how many Burgers they eat in a month. Here are the results:
What is the probability of the boys to eat more than 0 Burgers in a month? | |
[2] | A bag has 4 balls with numbers from 4 to 7. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 6? | |
[1] |
The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 40%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] | The chances of feeling like icecream are 70%. The chances of being near an icecream store are 80%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
Roll 150 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | An obstacle course has 1 Fences and 1 Ditches. You have a 50% chance of clearing a Fence and a 100% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
Flip 2 coins.
What is the probability of getting a head and a tail? | |
[1] | | A bag has 2 balls with number 1 and 5 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
We asked a group of humans how many Sandwiches they eat in a week. Here are the results:
What is the probability of the humans to eat exactly 2 Sandwiches in a week? | |
[2] |