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 | 0.2 | 0.1 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 2? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score more than 4? | |
[2] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | pink | green | blue | | Color |
If you choose a random ball from the bag, what is the probability of it not being green or pink? | |
[1] | Flip a coin 8 times.
Each time a head comes up you win $4 and with each tail you lose $2. It costs $14 to play (paid once). How much money would you expect to make altogether? | |
[1] |
Roll 132 6-sided dice.
How many times would you expect to get more than 3? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.3 | 0.5 | | red | orange | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[1] |
| You shoot an arrow at a target. There is a 10% chance of scoring a 10 and a 10% chance of scoring a 40 and a 80% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | Roll 78 6-sided dice.
How many times would you expect to get more than 4? | |
[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:
| | 0.7 | 0.05 | 0.05 | | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 4? | |
[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 | 0.05 | 0.1 | 0.25 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 2? | |
[1] |
We asked a group of boys how many Strawberries they eat in a week. Here are the results:
What is the probability of the boys to eat exactly 1 Strawberries in a week? | |
[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:
| | 0.6 | | 0.05 | 0.25 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in less than 13s?
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[2] |
The weather forecast says that the chances of rain are 70%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 50%.
What is the probability of getting wet today? | |
[1] | A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 16s?
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[2] |
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