Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.6 | 0.4 | | yellow | purple | | Color |
Probability of Type
| | 0.6 | 0.4 | | sedan | wagon | | Type |
What is the probability of a car being a yellow wagon? | |
[2] | The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 40%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get anything except 2? | |
[1] | There are 12 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] |
A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score exactly 0? | |
[2] | Roll 30 6-sided dice.
How many times would you expect to get less than or equal to 2? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in more than 17s?
| |
[2] | The weather forecast says that the chances of rain are 30%. Your chance of being outside today is 50%. The chance of remembering your umbrella is 70%.
What is the probability of getting wet today? | |
[1] |
A group of people were timed running 100m. Here are the results:
What fraction of the people run 100m in exactly 14s?
| |
[2] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in less than 13s?
| |
[2] |
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] | Roll 84 6-sided dice.
How many times would you expect to get less than or equal to 4? | |
[1] |
The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 90%. The chance of remembering your umbrella is 70%.
What is the probability of getting wet today? | |
[1] | A bag has 4 red balls and 3 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
A wheel has 10 sections, each has a reward in dollars, from $1 through to $10.
What prize do we expect to get if we spin the wheel? | |
[1] |