There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.3 | 0.3 | | blue | purple | pink | | Color |
How many blue 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:
| | 0.15 | 0.1 | 0.2 | 0.1 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1? | |
[1] |
We asked a group of girls how many Burgers they eat in a day. Here are the results:
What fraction of the girls eat less than 2 Burgers in a day? | |
[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:
| | 0.05 | 0.1 | | 0.05 | 0.8 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 1 to 3? | |
[1] |
You roll a 4 sided die and a 9 sided die.
What is the probability of getting 5 on both dice? | |
[1] | A group of humans were timed running 100m. Here are the results:
| Time | humans | | 13 | 1 | | 14 | 3 | | 15 | 6 | | 16 | 2 | | 17 | 1 |
What is the probability of the humans to run 100m in less than 14s?
| |
[2] |
A bag has 5 balls with numbers from 5 to 9. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 9? | |
[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 | 0.2 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller 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 | 0.1 | 0.25 | 0.15 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] | | A bag has 5 balls with number 7 and 8 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.6 | 0.4 | | purple | pink | | Color |
Probability of Type
| | 0.9 | 0.1 | | wagon | sedan | | Type |
What is the probability of a car being a purple 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:
What is the probability of rolling 2 or 5? | |
[1] |
A bag has 5 red balls, 9 green balls and 7 blue balls. You take out 1 ball.
What is the probability of getting a green ball? | |
[1] | A bag has 8 red balls, 5 green balls and 3 blue balls. You take out 1 ball.
What is the probability of NOT getting a green ball? | |
[1] |
A bag has 10 red balls, 5 blue balls and 8 yellow balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | An obstacle course has 2 Fences and 1 Ditches. You have a 90% 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 a coin 6 times.
Each time a head comes up you win $2 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |