There are 90 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | red | purple | | Color |
Probability of Type
| | 0.7 | 0.3 | | wagon | sedan | | Type |
What is the probability of a car being a purple sedan? | |
[2] |
A wheel has 14 sections, each has a reward in dollars, from $1 through to $14.
What prize do we expect to get if we spin the wheel? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.4 | 0.2 | | pink | purple | 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:
| | 0.65 | | 0.05 | 0.1 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 2 to 3? | |
[1] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in less than 14s?
| |
[2] |
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 0? | |
[2] | The chances of feeling like icecream are 90%. The chances of being near an icecream store are 90%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
There are 32 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 6 | | 14 | 0 | | 15 | 5 | | 16 | 5 | | 17 | 1 |
What is the probability of the people to run 100m in exactly 13s?
| |
[2] |
A bag has 7 red balls, 4 blue balls and 7 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting red for the last ball? | |
[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:
| | 0.1 | 0.15 | 0.2 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 4? | |
[1] |
A bag has 8 balls with numbers from 1 to 8. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 2? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | purple | pink | | Color |
Probability of Type
| | 0.3 | 0.7 | | sedan | wagon | | Type |
What is the probability of a car being a purple wagon? | |
[2] |
You flip a coin and roll a 9 sided die.
What is the probability of getting a 6 and a tail? | |
[1] |