The weather forecast says that the chances of rain are 90%. 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] | 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:
| | 0.5 | 0.2 | 0.05 | | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 or smaller than 5? | |
[1] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting less than or equal to 2? | |
[1] | We asked a group of humans how many Strawberries they eat in a week. Here are the results:
humans
| | 3 | 6 | 1 | 4 | | 0 | 1 | 2 | 3 | | Strawberries |
What is the probability of the humans to eat exactly 1 Strawberries in a week? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 2 and a head? | |
[1] | Roll 102 6-sided dice.
How many times would you expect to get less than or equal to 4? | |
[1] |
Flip a coin 8 times.
Each time a Tail comes up you win $2. How much money would you expect to make altogether? | |
[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:
What is the probability of rolling a number that is smaller than or equal to 3? | |
[1] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 30, a 20% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | We asked a group of boys how many Apples they eat in a day. Here are the results:
What fraction of the boys eat exactly 4 Apples in a day? | |
[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 smaller than 2? | |
[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:
| | 0.05 | 0.05 | 0.05 | 0.1 | 0.75 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.3 | 0.1 | | purple | red | blue | | Color |
How many blue balls were in the bag? | |
[1] | We asked a group of people how many Peaches they eat in a month. Here are the results:
What fraction of the people eat more than 2 Peaches in a month? | |
[2] |
We asked a group of girls how many Sandwiches they eat in a day. Here are the results:
What is the probability of the girls to eat exactly 1 Sandwiches in a day? | |
[2] | Flip a coin 2 times.
Each time a Head comes up you win $2. It costs $3 to play (paid once). How much money would you expect to make altogether? | |
[1] |
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