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:
| | 0.2 | 0.2 | 0.25 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller than 5? | |
[1] | A bag has 2 balls with number 7 and 4 balls with a number 6. You take out 1 ball.
What is the probability of getting the ball with the number 7? | |
[1] |
Roll 126 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | | You shoot an arrow at a target. There is a 50% chance of scoring a 30 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number equal to 5 and a tail? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 4 and a tail? | |
[1] |
The chances of feeling like icecream are 60%. The chances of being near an icecream store are 50%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | You flip a coin and roll a 3 sided die.
What is the probability of getting a 3 and a head? | |
[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 or equal to 2? | |
[1] | Flip 1 coin.
What is the probability of getting a tail? | |
[1] |
A group of kids did a math test and here are their scores out of 5:
What is the probability of the kids to score more than 1? | |
[2] | An obstacle course has 2 Fences and 1 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] |
A bag has 9 balls with numbers from 3 to 11. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] | A bag has 5 balls with number 6 and 6 balls with a number 2. You take out 1 ball.
What is the probability of getting the ball with the number 6? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.25 | 0.75 | | purple | yellow | | Color |
How many purple balls were in the bag? | |
[1] | | You shoot an arrow at a target. There is a 50% chance of scoring a 10, a 40% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
The chances of feeling like icecream are 50%. The chances of being near an icecream store are 90%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | green | yellow | red | | Color |
How many red balls were in the bag? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | blue | red | yellow | | Color |
How many yellow balls were in the bag? | |
[1] |