Roll 72 6-sided dice.
How many times would you expect to get less than 4? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a 6? | |
[1] |
Flip a coin 12 times.
Each time a head comes up you win $2 and with each tail you lose $1. It costs $21 to play (paid once). How much money would you expect to make altogether? | |
[1] | A bag has 2 balls with numbers from 5 to 6. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting a number bigger than or equal to 3? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.8 | | pink | blue | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[1] |
A group of humans were timed running 100m. Here are the results:
What is the probability of the humans to run 100m in exactly 13s?
| |
[2] | There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | red | orange | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow or red? | |
[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:
| | 0.45 | 0.2 | | 0.2 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 1? | |
[1] | Roll 2 6-sided dice.
What is the probability of getting a 6 on both dice? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get more than or equal to 4? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 3? | |
[1] |
Roll 102 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | red | blue | | Color |
Probability of Type
| | 0.5 | 0.5 | | sedan | wagon | | Type |
What is the probability of a car being a red sedan? | |
[2] |
Roll 30 6-sided dice.
How many times would you expect to get less than 2? | |
[1] | A group of people were timed running 100m. Here are the results:
What is the probability of the people to run 100m in more than 14s?
| |
[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:
| | 0.85 | 0.05 | 0.05 | | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 3? | |
[1] |