A bag has 10 red balls and 9 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | red | blue | | Color |
Probability of Type
| | 0.5 | 0.5 | | wagon | sedan | | Type |
What is the probability of a car being a red wagon? | |
[2] |
An obstacle course has 2 Fences and 1 Ditches. You have a 100% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 1? | |
[2] |
A bag has 6 balls with number 8 and 2 balls with a number 5. You take out 1 ball.
What is the probability of getting the ball with the number 8? | |
[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 4 and smaller than 5? | |
[1] |
A bag has 2 red balls, 9 blue balls and 10 yellow balls. You take out a red ball, then a yellow ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 0? | |
[2] |
A wheel has 6 sections, each a number on it from 1 to 6. If you spin an even number you win that amount of dollars, if you spin an odd number you lose.
What prize do we expect to get if we spin the wheel? | |
[1] | We asked a group of people how many Burgers they eat in a day. Here are the results:
What fraction of the people eat exactly 0 Burgers in a day? | |
[2] |
There are 36 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | A bag has 3 balls with numbers from 5 to 7. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 8? | |
[1] |
The chances of feeling like icecream are 50%. The chances of being near an icecream store are 60%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | We asked a group of kids how many Icecreams they eat in a week. Here are the results:
What fraction of the kids eat less than 4 Icecreams in a week? | |
[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:
What is the probability of rolling a number that is smaller than 3? | |
[1] |