You flip a coin and roll a 6 sided die.
What is the probability of getting a 3 and a head? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5? | |
[1] |
| A bag has 4 balls with number 8 and 6 balls with a number 3. What will be the average of the numbers of the balls taken out of the bag | |
[1] | Roll 90 6-sided dice.
How many times would you expect to get less than or equal to 2? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in less than 17s?
| |
[2] | Roll 84 6-sided dice.
How many times would you expect to get anything except 4? | |
[1] |
A wheel has 8 sections, each has a reward in dollars, from $1 through to $8.
What prize do we expect to get if we spin the wheel? | |
[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:
| | 0.2 | 0.1 | 0.25 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 3? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.3 | 0.6 | | blue | red | yellow | | Color |
How many yellow balls were in the bag? | |
[1] | An obstacle course has 1 Fences and 2 Ditches. You have a 90% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
| You shoot an arrow at a target. There is a 60% chance of scoring a 20 and a 40% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
| You shoot an arrow at a target. There is a 90% chance of scoring a 30 and a 10% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | We asked a group of dogs how many Peaches they eat in a month. Here are the results:
What is the probability of the dogs to eat more than 0 Peaches in a month? | |
[2] |
Roll 54 6-sided dice.
How many times would you expect to get more than 4? | |
[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 2 Strawberries in a day? | |
[2] |
There are 50 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |