There are 12 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | A bag has 8 red balls and 3 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] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | blue | red | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being red? | |
[1] | A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score exactly 0? | |
[2] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 15s?
| |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | green | orange | | Color |
Probability of Type
| | 1 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.2 | | | green | pink | orange | | Color |
If you choose a random ball from the bag, what is the probability of it not being orange? | |
[1] | A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score less than 2? | |
[2] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are even? | |
[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 1 and smaller than 5? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting an odd number? | |
[1] | The chances of feeling like icecream are 50%. 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] |
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 1? | |
[2] | Flip a coin 2 times.
Each time a head comes up you win $1 and with each tail you lose $2. How much money would you expect to make altogether? | |
[1] |
A bag has 5 red balls and 7 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] |