There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | | 0.3 | | orange | blue | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being blue or pink? | |
[1] | The weather forecast says that the chances of rain are 90%. Your chance of being outside today is 60%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] |
Roll 84 6-sided dice.
How many times would you expect to get anything except 6? | |
[1] | We asked a group of kids how many Hot dogs they eat in a week. Here are the results:
What fraction of the kids eat exactly 3 Hot dogs in a week? | |
[2] |
We asked a group of girls how many Popsicles they eat in a month. Here are the results:
What is the probability of the girls to eat more than 1 Popsicles in a month? | |
[2] | You flip a coin and roll a 5 sided die.
What is the probability of getting a 5 and a tail? | |
[1] |
We asked a group of people how many Pillows they eat in a day. Here are the results:
What is the probability of the people to eat less than 0 Pillows in a day? | |
[2] | There are 40 balls in a bag. This is is the probability distribution of their 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 more than 6 and a head? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
How many green 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:
| | 0.05 | 0.1 | 0.1 | 0.75 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 2 or 3? | |
[1] | An obstacle course has 1 Fences and 2 Ditches. You have a 100% 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] |
An obstacle course has 1 Fences and 2 Ditches. You have a 80% 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] | Roll 30 6-sided dice.
How many times would you expect to get more than 2? | |
[1] |
A bag has 3 red balls, 2 blue balls and 6 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 6 or a 4 and a tail? | |
[1] |
The chances of feeling like icecream are 70%. The chances of being near an icecream store are 70%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |