Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | red | green | | Color |
Probability of Type
| | 0.1 | 0.9 | | sedan | wagon | | Type |
What is the probability of a car being a green wagon? | |
[2] | We asked a group of dogs how many Hot dogs they eat in a week. Here are the results:
What is the probability of the dogs to eat more than 1 Hot dogs in a week? | |
[2] |
We asked a group of dogs how many Sandwiches they eat in a day. Here are the results:
What fraction of the dogs eat exactly 3 Sandwiches in a day? | |
[2] | Flip a coin 14 times.
Each time a head comes up you win $2 and with each tail you lose $1. It costs $4 to play (paid once). How much money would you expect to make altogether? | |
[1] |
A group of people were timed running 100m. Here are the results:
people
| |
| Time | 13 | 5 | | 14 | 6 | | 15 | 1 | | 16 | 5 | | 17 | 5 |
What fraction of the people run 100m in exactly 15s?
| |
[2] | Roll 1 6-sided die.
What is the probability of getting a number smaller than 1? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | purple | yellow | 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:
| | 0.25 | 0.2 | 0.15 | | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 and smaller than 5? | |
[1] |
Flip a coin 2 times.
Each time a Head 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 bigger than 3 or smaller than 4? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | green | blue | | Color |
Probability of Type
| | 0.6 | 0.4 | | sedan | wagon | | Type |
What is the probability of a car being a green wagon? | |
[2] | Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 2? | |
[1] |
| You shoot an arrow at a target. There is a 80% chance of scoring a 20 and a 20% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | There are 24 balls in a bag. This is is the probability distribution of their color:
| | 0.75 | 0.25 | | orange | yellow | | Color |
How many orange balls were in the bag? | |
[1] |
There are 4 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] |