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 | 0.05 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 1? | |
[1] | | You shoot an arrow at a target. There is a 90% chance of scoring a 20 and a 10% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] |
Roll 126 6-sided dice.
How many times would you expect to get anything except 5? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score exactly 5? | |
[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:
| | 0.65 | 0.2 | 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 3? | |
[1] | Flip a coin 8 times.
Each time a Head comes up you win $1. How much money would you expect to make altogether? | |
[1] |
A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 0 | | 14 | 5 | | 15 | 1 | | 16 | 3 | | 17 | 6 |
What fraction of the people run 100m in exactly 14s?
| |
[2] | We asked a group of dogs how many Oranges they eat in a week. Here are the results:
What is the probability of the dogs to eat exactly 0 Oranges in a week? | |
[2] |
| A bag has 4 balls with number 5 and 5 balls with a number 7. What will be the average of the numbers of the balls taken out of 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:
| | 0.55 | 0.05 | 0.1 | 0.15 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] |
A bag has 3 red balls and 9 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 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 | 0.05 | 0.2 | | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 4? | |
[1] |
| You shoot an arrow at a target. There is a 30% chance of scoring a 20 and a 40% chance of scoring a 30 and a 30% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | blue | orange | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a blue sedan? | |
[2] |
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 more than 5? | |
[2] |