Roll 108 6-sided dice.
How many times would you expect to get more than 1? | |
[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 bigger than 3 and smaller than 5? | |
[1] |
Roll a die 90 times.
How many times would you expect to get a 3? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.2 | | | yellow | blue | orange | | Color |
How many blue balls were in the bag? | |
[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 15s?
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[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | red | green | | Color |
Probability of Type
| | 1 | | sedan | wagon | | Type |
What is the probability of a car being a red wagon? | |
[2] |
A bag has 10 balls with numbers from 3 to 12. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 8? | |
[1] | A bag has 3 balls with number 2 and 6 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 2? | |
[1] |
We asked a group of boys how many Oranges they eat in a month. Here are the results:
What fraction of the boys eat exactly 3 Oranges in a month? | |
[2] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |
An obstacle course has 2 Fences and 1 Ditches. You have a 100% 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 $3. How much money would you expect to make altogether? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score less than 3? | |
[2] | An obstacle course has 2 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 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 or equal to 2? | |
[1] | Roll 30 6-sided dice.
How many times would you expect to get more than 5? | |
[1] |
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