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 | 0.2 | 0.05 | 0.2 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 3? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a number smaller than or equal to 1? | |
[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 13s?
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[2] | A bag has 6 balls with number 6 and 9 balls with a number 1. You take out 1 ball.
What is the probability of getting the ball with the number 1? | |
[1] |
Roll 24 6-sided dice.
How many times would you expect to get more than or equal to 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:
| | 0.6 | 0.1 | | 0.05 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller than 5? | |
[1] |
A bag has 6 balls with numbers from 2 to 7. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 8? | |
[1] | A bag has 2 balls with numbers from 5 to 6. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 7? | |
[1] |
The chances of feeling like icecream are 50%. The chances of being near an icecream store are 70%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | A wheel has 6 purple sections and 8 yellow sections.
What is the probability of getting purple? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 5 and a tail? | |
[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 17s?
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[2] |
There are 30 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 13s?
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[2] |
An obstacle course has 2 Fences and 1 Ditches. You have a 100% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | A bag has 2 balls with number 4 and 7 balls with a number 7. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
A bag has 3 red balls and 8 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |