Roll 72 6-sided dice.
How many times would you expect to get more than 1? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | green | red | | Color |
Probability of Type
| | 0.7 | 0.3 | | wagon | sedan | | Type |
What is the probability of a car being a red wagon? | |
[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:
| | 0.55 | | 0.05 | 0.15 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 2 to 5? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | purple | green | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a green sedan? | |
[2] |
There are 50 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | orange | pink | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink? | |
[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 from 2 to 3? | |
[1] | A group of people were timed running 100m. Here are the results:
people
| |
| Time | 13 | 5 | | 14 | 3 | | 15 | 4 | | 16 | 3 | | 17 | 6 |
What fraction of the people run 100m in more than 16s?
| |
[2] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | | 0.8 | | blue | yellow | orange | | Color |
How many orange balls were in the bag? | |
[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:
| | 0.2 | 0.25 | 0.2 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 1? | |
[1] |
There are 14 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are more than 3? | |
[1] |
A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score more than 3? | |
[2] | A bag has 9 red balls and 7 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in exactly 16s?
| |
[2] |