Roll 72 6-sided dice.
How many times would you expect to get more than 4? | |
[1] | The weather forecast says that the chances of rain are 20%. Your chance of being outside today is 40%. You flip a coin to decide whether to take your umbrella.
What is the probability of getting wet today? | |
[1] |
A bag has 9 balls with numbers from 4 to 12. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 9? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | green | pink | | Color |
Probability of Type
| | 0.6 | 0.4 | | wagon | sedan | | Type |
What is the probability of a car being a green sedan? | |
[2] |
Roll 114 6-sided dice.
How many times would you expect to get less than or equal to 5? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[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 2? | |
[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:
What is the probability of rolling a number that is bigger than 4 and smaller than 3? | |
[1] | A bag has 2 red balls, 7 blue balls and 8 yellow balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[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:
| | 0.55 | 0.2 | 0.15 | | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 4? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | yellow | red | | Color |
Probability of Type
| | 0.7 | 0.3 | | wagon | sedan | | Type |
What is the probability of a car being a red wagon? | |
[2] |
The weather forecast says that the chances of rain are 40%. Your chance of being outside today is 70%. You flip a coin to decide whether to take your umbrella.
What is the probability of getting wet today? | |
[1] | Flip 2 coins.
What is the probability of getting 2 heads? | |
[1] |
We asked a group of dogs how many Chocolates they eat in a week. Here are the results:
What is the probability of the dogs to eat more than 4 Chocolates in a week? | |
[2] | 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] |
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