A wheel has 11 sections, each a different color.
What is the probability of getting green? | |
[1] | A bag has 7 red balls, 10 blue balls and 3 yellow balls. You take out a red 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:
What is the probability of rolling a number that is smaller than 1? | |
[1] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than or equal to 3? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in less than 14s?
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[2] | Flip a coin 6 times.
Each time a Tail comes up you win $3. It costs $8 to play (paid once). How much money would you expect to make altogether? | |
[1] |
A bag has 5 balls with number 5 and 8 balls with a number 7. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] | We asked a group of boys how many Pillows they eat in a day. Here are the results:
What fraction of the boys eat exactly 3 Pillows in a day? | |
[2] |
A bag has 6 balls with numbers from 3 to 8. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 4? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 5 and a head? | |
[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 | 0.2 | 0.1 | 0.15 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 3? | |
[1] | We asked a group of people how many Icecreams they eat in a month. Here are the results:
What is the probability of the people to eat less than 1 Icecreams in a month? | |
[2] |
Roll 78 6-sided dice.
How many times would you expect to get an ugly number? | |
[1] | A wheel has 3 orange sections and 5 green sections.
What is the probability of getting green? | |
[1] |
An obstacle course has 1 Fences and 1 Ditches. You have a 100% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 0 | | 14 | 0 | | 15 | 1 | | 16 | 3 | | 17 | 5 |
What is the probability of the people to run 100m in more than 17s?
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[2] |
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