You roll 2 3-sided dice
You add the two numbers. What is the probability of getting less than or equal to 5? | |
[1] | Roll 102 6-sided dice.
How many times would you expect to get anything except 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:
| | 0.2 | 0.05 | 0.1 | 0.15 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] | Roll 126 6-sided dice.
How many times would you expect to get less than 2? | |
[1] |
A bag has 5 balls with numbers from 1 to 5. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 2? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 0? | |
[2] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 17s?
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[2] | A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in less than 16s?
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[2] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.4 | 0.5 | | blue | pink | orange | | Color |
How many blue balls were in the bag? | |
[1] | There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.4 | 0.2 | | blue | green | yellow | | Color |
How many green balls were in the bag? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | red | orange | blue | | Color |
How many blue balls were in the bag? | |
[1] | A wheel has 10 sections, each has a reward in dollars, from $1 through to $10.
What prize do we expect to get if we spin the wheel? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score more than 1? | |
[2] | A bag has 7 red balls and 10 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] |
A bag has 7 balls with numbers from 2 to 8. You take out 1 ball.
What is the probability of NOT getting the ball with the number 2? | |
[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:
| | 0.75 | 0.05 | | 0.15 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 or smaller than 2? | |
[1] |
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