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:
| | 0.15 | 0.05 | | 0.2 | 0.6 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | blue | purple | red | | Color |
If you choose a random ball from the bag, what is the probability of it not being red? | |
[1] | The weather forecast says that the chances of rain are 70%. The chance of remembering your umbrella is 70%. Your chance of being outside today are 40%.
What is the probability of getting wet today? | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | green | red | orange | | Color |
How many red balls were in the bag? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.2 | 0.6 | | green | purple | red | | Color |
How many purple balls were in the bag? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 3 and a tail? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | | 0.9 | | red | purple | orange | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[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 | 0.15 | 0.2 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 1? | |
[1] | An obstacle course has 1 Fences and 1 Ditches. You have a 80% 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 wheel has 6 orange sections and 4 pink sections.
What is the probability of getting orange? | |
[1] | Flip 1 coin.
What is the probability of getting a tail? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are less than 5? | |
[1] | | You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 20% chance of scoring a 40 and a 70% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A wheel has 8 orange sections and 3 blue sections.
What is the probability of getting orange? | |
[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:
| | 0.45 | 0.2 | | 0.2 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] |
The chances of feeling like icecream are 70%. The chances of being near an icecream store are 40%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | A bag has 6 red balls, 8 blue balls and 8 yellow balls. You take out a yellow ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
We asked a group of people how many Icecreams they eat in a month. Here are the results:
What fraction of the people eat less than 1 Icecreams in a month? | |
[2] |