The weather forecast says that the chances of rain are 30%. Your chance of being outside today is 70%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.9 | | green | orange | red | | Color |
How many orange balls were in the bag? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.2 | 0.6 | | yellow | pink | orange | | Color |
How many yellow balls were in the bag? | |
[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 | | 0.25 | 0.1 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 5? | |
[1] |
An obstacle course has 1 Fences and 2 Ditches. You have a 50% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | A bag has 7 red balls and 4 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.6 | 0.4 | | purple | green | | Color |
Probability of Type
| | 0.9 | 0.1 | | wagon | sedan | | Type |
What is the probability of a car being a purple sedan? | |
[2] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | | 0.5 | | yellow | pink | purple | | Color |
How many yellow balls were in the bag? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.4 | 0.1 | | purple | pink | orange | | Color |
How many pink balls were in the bag? | |
[1] | A bag has 10 red balls, 3 green balls and 10 blue balls. You take out 1 ball.
What is the probability of NOT getting a blue ball? | |
[1] |
Roll 54 6-sided dice.
How many times would you expect to get less than or equal to 4? | |
[1] | We asked a group of humans how many Popsicles they eat in a week. Here are the results:
What is the probability of the humans to eat less than 0 Popsicles in a week? | |
[2] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 17s?
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[2] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in exactly 16s?
| |
[2] |
We asked a group of kids how many Popsicles they eat in a day. Here are the results:
What is the probability of the kids to eat less than 2 Popsicles in a day? | |
[2] |