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 | 0.05 | 0.15 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[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 less than 4? | |
[2] |
A group of people were timed running 100m. Here are the results:
people
| | 2 | 3 | 5 | 5 | 6 | | 13 | 14 | 15 | 16 | 17 | | Time |
What is the probability of the people to run 100m in more than 14s?
| |
[2] | Roll 12 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
Roll 66 6-sided dice.
How many times would you expect to get an even number? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 30, a 30% chance of scoring a 40, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[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 5? | |
[2] | | You shoot an arrow at a target. There is a 70% chance of scoring a 10 and a 30% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A bag has 8 red balls, 2 green balls and 2 blue balls. You take out 1 ball.
What is the probability of getting a green ball? | |
[1] | A bag has 8 red balls and 5 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
A bag has 7 balls with numbers from 3 to 9. You take out 1 ball.
What is the probability of NOT getting the ball with the number 3? | |
[1] | A bag has 6 red balls, 10 blue balls and 10 yellow balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[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] | Roll 24 6-sided dice.
How many times would you expect to get more than 2? | |
[1] |
We asked a group of boys how many Strawberries they eat in a day. Here are the results:
What is the probability of the boys to eat exactly 0 Strawberries in a day? | |
[2] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | yellow | orange | red | | Color |
How many yellow balls were in the bag? | |
[1] |
|