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 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 and smaller than 3? | |
[1] | You flip a coin and roll a 4 sided die.
What is the probability of getting a 1 and a head? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.5 | 0.4 | | purple | blue | green | | Color |
If you choose a random ball from the bag, what is the probability of it being green? | |
[1] | A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score less than 5? | |
[2] |
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] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.1 | 0.3 | | yellow | pink | green | | Color |
If you choose a random ball from the bag, what is the probability of it being green? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.3 | 0.5 | | green | orange | pink | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink or orange? | |
[1] | | You shoot an arrow at a target. There is a 20% chance of scoring a 10 and a 40% chance of scoring a 30 and a 40% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] |
There are 20 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | An obstacle course has 2 Fences and 1 Ditches. You have a 80% chance of clearing a Fence and a 90% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
Roll 54 6-sided dice.
How many times would you expect to get a number less than 6? | |
[1] | Roll 36 6-sided dice.
How many times would you expect to get more 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 exactly 0? | |
[2] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | orange | purple | pink | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[1] |
Roll 108 6-sided dice.
How many times would you expect to get less than 2? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 2 or a 1 and a head or a tail? | |
[1] |
The weather forecast says that the chances of rain are 80%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 80%.
What is the probability of getting wet today? | |
[1] |